Detailed Instructions: 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 seamlessly connects with the rest of the story, indicating your choice as 'a' or 'b'. If both sentences are plausible, pick the one that makes more sense.
Q: Title: Old Tree. Sentence 1: There was an old tree at a local park. Sentence 2: The citizens were fond of the old tree. Sentence 3: One day a large corporation came to cut the tree down. Sentence 4: They wanted space to build their new business. Choices: a. George told him that they weren't tricks, but illusions. b. The citizens protested until they backed down.
A:
b