Given the task definition and input, reply with output. In this task, you're given the title of a five-sentence story, the first four sentences, and two options for the fifth sentence as a and b. Your job is to pick the sentence option that does not connect with the rest of the story, indicating your choice as 'a' or 'b'. If both sentences are plausible, pick the one that makes less sense.

Title: Safari. Sentence 1: Tom always loved the elephant. Sentence 2: Ever since childhood, Tom wanted to see elephants up close. Sentence 3: As an adult, Tom now planned a safari for his family. Sentence 4: In the summer, Tom took his family to Kenya. Choices: a. He filmed is zoo experience with the cat and had fun. b. There, for the first time, Tom saw an elephant up close and personal.
a