What is the main purpose of the following passage?

a star is a gaseous body in outer space that generates energy and emits light through the process of nuclear fusion.

to direct

to persuade

to entertain

to inform

“you meet new people on a job. kayla morrison says, 'i work with two college students from the east coast, and it's been interesting learning about their lives.' kayla has also come to think of the café owner as a mentor who is providing her with valuable information about the food service industry. kayla is even thinking about applying for the culinary arts program at her high school.” what is the topic sentence of this paragraph?