In this task, you're given four sentences of a story written in natural language. The given story is not complete and your job is to complete the story by selecting one of the end sentence choices from (A) and (B), such that the story does not sound complete and coherent, i.e., select an incorrect end sentence.
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Question: Sentence1: Frank filled up dozens of water balloons to throw at this sister. Sentence2: Little did he know she was ready for him. Sentence3: When he started the attack, she pulled out a huge water gun. Sentence4: It was much more effective than his balloons.
(A) Frank enrolled in a marine biology class. (B) Frank bought a water gun the next day.

Answer: A

Question: Sentence1: Trip loved watermelon. Sentence2: He would eat at least one a day. Sentence3: His mom always told him he would grow a tree swallowing seeds. Sentence4: He always swallowed them anyways.
(A) Trip enjoyed the flavor of the seeds. (B) Trip stopped eating watermelon completely.

Answer: B

Question: Sentence1: Little Sue was riding an elephant at the zoo. Sentence2: She like it at first but then got scared. Sentence3: She started to cry for her mom. Sentence4: The zoo keeper had to stop the elephant and get her.
(A) Sue's mom took her to pet the goat instead. (B) Sue continued to ride the elephant.

Answer:
B