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: I liked watching foreign movies. Sentence 2: In 2006 Volver was released. Sentence 3: I wanted to see the movie but my wife did not. Sentence 4: I took a half day off from work and saw it. Sentence 5: It was very amusing. Choices: a. Volver. b. Update on Towing.
a