Teacher: 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'.
Teacher: Now, understand the problem? If you are still confused, see the following example:
Sentence 1: Marcus needed clothing for a business casual event. Sentence 2: All of his clothes were either too formal or too casual. Sentence 3: He decided to buy a pair of khakis. Sentence 4: The pair he bought fit him perfectly. Sentence 5: Marcus was happy to have the right clothes for the event. Choices: a. Marcus Buys Khakis. b. Marcus Works.
Solution: a
Reason: Marcus's reasons for buying khakis is established, followed by his purchase of them and reaction.

Now, solve this instance: Sentence 1: Martha is never at home to cook meals so she eats fast food a lot. Sentence 2: Recently she realized she was gaining a lot of weight. Sentence 3: Martha wanted to lose weight, so she signed up for food delivery. Sentence 4: A company delivers a box of fresh ingredients to her door every week. Sentence 5: Now Martha cooks her own meals and she's finally losing weight. Choices: a. Two Failed Experiments on a Hot Day. b. Trying Something New.
Student:
b