Sentence 1: Karl the supermarket bag boy was faced with a dilemma. 
 Sentence 3: The stress of the situation piled on him greatly 
 Sentence 4:  At last he decided to use two bag just to be safe 
 Sentence 5:  He handed the bags to the customer and thanked him 
 Option 1: To fit all the food in one bag or to waste a bag and use two? 
 Option 2: His customer had brought their own bag.