Read the following passage and questions, then choose the right answer from options, the answer should be one of A, B, C, D.

<passage>:
Miss Philicoff, the girls in the gilded teller cages. There was Mister Anderson, the guard, dozing by the door in his brown uniform. There was brown cracked-leather jackets over flannel shirts, white handkerchiefs over the lower half of their faces and gray-and-white check caps pulled low over their eyes. The eyes themselves looked dangerous. burned in 'The Scorpion' in big black letters you could see half a block away." "Maybe they didn't notice it when they stole the car," said Pauling. "For a well-planned operation like this one," said Stevenson, "they "Well, why not?" demanded Hastings belligerently. "If I'm making just a quick stop—I never spend more than five minutes with any one customer—I always leave the keys in the car. Why not?" "The car was stolen," Stevenson reminded him. that is, the address had been clipped, a letter or a word at a time, from a newspaper and glued to the envelope. There was no return address. The warning was duly noted, and the letter filed in the wastebasket. It didn't rate a line in the paper. house at nine o'clock, and spent some time tapping at the still-locked position across the street from the scene of carnage and went to work with a Zoomar lens. In the meantime, Mister Higgins had barricaded himself in his house, firing at anything that moved. corner, where the police had roped the block off, and occasionally Mr. Higgins would stick his rifle out a window and shoot at somebody. The police used loudspeakers to tell Higgins he might as well give up, they had the place surrounded and could eventually starve him out anyway. "They were defective," said Hanks promptly. "All four of them at once? And what about the thing written on the trunk?" "How do I know?" demanded the captain. "Kids put it on before the car was stolen, maybe. Or maybe the hoods did it themselves, who knows? What do was a fiend around loose, stuffing all those kids into abandoned refrigerators to starve. He went around trying to prove it, and getting all upset, and pretty soon they had to put him away in the nut hatch. Remember?" Hallowe'en is a good time for a rumble. There's too many kids around for the cops to keep track of all of them, and if you're picked up carrying a knife or a length of tire chain or something, why, you're on The problem was this schoolyard. It was a block wide, with entrances on two streets. The street on the north was Challenger territory, and the street on the south was Scarlet Raider territory, and both sides claimed the schoolyard. There had been a few skirmishes, a few guys from both gangs had been jumped and knocked around a little, but that had been all. Finally, the War Lords from the two gangs had met, and determined that the matter could only be settled in a war. The time was chosen: Hallowe'en. The place was chosen: the schoolyard. The weapons were chosen: pocket knives and tire chains okay, but no pistols or zip-guns. The time was fixed: eleven P.M. And the winner would have undisputed territorial rights to the schoolyard, both entrances. The night of the rumble, the gangs assembled in their separate clubrooms for last-minute instructions. Debs were sent out to play chicken at the intersections nearest the schoolyard, both to warn of the approach of cops and to keep out any non-combatant kids who might come wandering through. dark and quiet. Few people cared to walk this neighborhood after dark, particularly on Hallowe'en. Judy leaned her back against the telephone pole on the corner, stuck her hands in the pockets of her Scarlet Raider jacket and waited. At eleven o'clock, she heard indistinct noises begin behind her. The rumble had started. At five after eleven, a bunch of little kids came wandering down the street. They were all about ten or eleven years old, and most of them carried trick-or-treat shopping bags. Some of them had Hallowe'en masks on. They started to make the turn toward the schoolyard. Judy said, "Hey, you kids. Take off." One of them, wearing a red mask, turned to look at her. "Who, us?" "Yeah," said another kid, in a black mask, "and we're late as it is." "I couldn't care less," Judy told them callously. "You can't go down that street." "Why not?" demanded yet another kid. This one was in the most complete black knit cap jammed down tight onto his head. "Why can't we go down there?" this apparition demanded. "Because I said so," Judy told him. "Now, you kids get away from here. Take off." "Hey!" cried the kid in the black-and-yellow costume. "Hey, they're fighting down there!" "It's a rumble," said Judy proudly. "You twerps don't want to be "Hey!" cried the kid in the black-and-yellow costume again. And he went running around Judy and dashing off down the street. "Hey, Eddie!" shouted one of the other kids. "Eddie, come back!" Judy wasn't sure what to do next. If she abandoned her post to chase the one kid who'd gotten through, then maybe all the rest of them would come running along after her. She didn't know what to do. A sudden siren and a distant flashing red light solved her problems. "Cheez," said one of the kids. "The cops!" "Fuzz!" screamed Judy. She turned and raced down the block toward the schoolyard, shouting, "Fuzz! Fuzz! Clear out, it's the fuzz!" But then she stopped, wide-eyed, when she saw what was going on in the schoolyard. The guys from both gangs were dancing. They were jumping around, waving their arms, throwing their weapons away. Then they all started pulling off their gang jackets and throwing them away, whooping and hollering. They were making such a racket themselves that they never heard Judy's warning. They didn't even hear the police sirens. And all at once both schoolyard entrances were full of cops, a cop had tight hold of Judy and the rumble was over. Judy was so baffled and terrified that everything was just one great big blur. But in the middle of it all, she did see the little kid in the yellow-and-black costume go scooting away down the street. And she had the craziest idea that it was all his fault. Captain Hanks was still in his realistic cycle this morning, and he was "It was a territorial war," Stevenson reminded him. "They've admitted that much. It says so in the paper. And it also says they all deny ever seeing that word on their jackets until after the fight." "A bunch of juvenile delinquents," said Hanks in disgust. "You take their word?" belt buckles and everything else—got freezing cold, too cold to touch. And then their leather jackets got freezing cold, so cold they had to pull them off and throw them away. And when the jackets were later you something," said Hanks severely. "They heard the police sirens, and they threw all their weapons away. Then they threw their jackets away, to try to make believe they hadn't been part of the gang that had been fighting. But they were caught before they could get out of the schoolyard. If the squad cars had showed up a minute later, the schoolyard wouldn't have had anything in it but weapons and jackets, and the kids would have been all over the neighborhood, nice as you please, minding their own business and not bothering anybody.

<question>:
Why was Halloween night chosen as the time for the rumble in the schoolyard?

<options>:
A Because on that particular night, there were no police on patrol because of the recent issues with The Scorpion.
B Because everyone was already dressed in disguise and not easily recognized.
C Because the police would have a difficult time keeping track of so many children who were out.
D Because the schoolyard was completely abandoned and they wouldn't need a lookout.

<answer>:

C