Sentence1: Heather and Marcus were ready for the next step in their relationship. Sentence2: They were happy newlyweds, but wanted an addition to their family. Sentence3: Although not quite ready for kids, they still felt lonely. Sentence4: On a whim, they went to an animal shelter and fell in love with a cat. 
 (A) They adopted the cat. (B) They left the shelter without an animal.
A