Question

form a compound sentence.
max sprained in the tennis tournament.
his ankle, so he cant play
or twisted his left ankle
his left ankle, not his right,

Explanation:

To form a compound sentence, we need two independent clauses connected by a coordinating conjunction or a semicolon (or a conjunctive adverb). Let's analyze each option:

1. "his ankle, so he can't play": The first part "Max sprained his ankle" is an independent clause, and "so he can't play in the tennis tournament" (we add the remaining part of the original sentence) is another independent clause connected by "so" (a coordinating conjunction). This forms a proper compound sentence showing the cause (sprained ankle) and effect (can't play).

1. "or twisted his left ankle": This would create a sentence like "Max sprained or twisted his left ankle in the tennis tournament" which is a simple sentence with a compound verb, not a compound sentence. Also, the structure doesn't fit the requirement of forming a compound sentence with two independent clauses.

1. "his left ankle, not his right,": This would result in "Max sprained his left ankle, not his right, in the tennis tournament" which is a simple sentence with additional information about the ankle, not a compound sentence with two independent clauses.

Answer:

A. his ankle, so he can't play