Final answer:
The choice between Theme 1: "Life sucks" and Theme 2: "Accept that life sucks" in a sitcom depends on the intended message and tone of the show.
Step-by-step explanation:
The right phrasing between the two themes, "Life sucks" and "Accept that life sucks," depends on the intended message and tone of the sitcom. Theme 1, "Life sucks," presents a negative outlook on life, while Theme 2, "Accept that life sucks," suggests a more accepting and potentially humorous approach. Ultimately, the effectiveness of the theme in a sitcom would depend on the target audience and the creative execution of the show.