Answer:
Keeping a regular schedule is so much better than letting each day's schedule be different and random.
Step-by-step explanation:
The other options were
Fruit salads and vegetable salads: there are good and bad things about both.
Astrology and astronomy both deal with studying the stars, but they are not the same.
Keeping a regular schedule is so much better than letting each day's schedule be different and random.
Having a guinea pig as a pet is both similar to and different from having a snake as a pet.
An evaluative thesis is one that shows an opinion on a topic. And the only option here that shows a bias or leaning to one side is "Keeping a regular schedule is so much better than letting each day's schedule be different and random." Which is showing that the author believes each day should be planned.