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: My third grade teacher was very young. Sentence 2: She told us she had just graduated college and was 22. Sentence 3: She was so nervous she was shaking. Sentence 4: We tried to help her feel better. Sentence 5: We fell in love with her on the first day. Choices: a. Third. b. back yard.
a