Given the task definition and input, reply with output. In this task, you're given the title and three arbitrary sentences out of a five-sentence story. You are also given three additional sentence options, a, b, and c, that may or may not belong to the story. Your job is to pick the two options that seamlessly connect with the rest of the story; note that the selected choices may fit into the story at any point. Indicate your selected choices in order, i.e., as 'ab'/'bc'/'ac' and not as 'ba'/'ca'/'cb'. If options are equally plausible, pick the ones that make more sense.

Title: Stephanie loved to sing. One day she decided to sing in front of her friends. Her friends were so impressed that they convinced her to perform. Choices: a. She often sang to herself without anyone around. b. Leah is proud of herself for being able to help the environment. c. Stephanie now has a singing recital coming up next month.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
ac