Given the task definition and input, reply with output. In this task, you're given five sentences, numbered 1 through 5, and two options a and b for possible titles for the story. Your job is to choose the title that better fits the story. Indicate your choice by 'a' or 'b'.

Sentence 1: Lucy dreamed to fly over the ocean. Sentence 2: She took a plane but couldn't feel the wind and was disappointed. Sentence 3: She decided to go to the beach and try to do some parasailing. Sentence 4: Five hundred feet above the ocean, she felt the wind. Sentence 5: She was very happy and spread her arms very wide. Choices: a. Flying!. b. Maria Waits.
a