Question

what is the main event in the part of the story in the box? lucky’s louisville’s cassius’s waiting nervously for good news about big boxing tournament.

Explanation:

To determine the correct possessive for the big boxing tournament, we analyze the context. Cassius Clay (Muhammad Ali) was associated with boxing and tournaments. "Lucky’s" and "Louisville’s" don't fit as well as "Cassius’s" in the context of a boxing tournament related to Cassius Clay. So the correct option for the first dropdown (the possessive) should be Cassius’s.

Answer:

Cassius’s