Question

which is a run - on sentence? the flight attendant on our return trip from phoenix. gabrielle wept during the movie it had an emotional ending.

Explanation:

A run - on sentence combines two or more independent clauses without proper punctuation or conjunctions. "Gabrielle wept during the movie it had an emotional ending" combines two independent clauses ("Gabrielle wept during the movie" and "it had an emotional ending") without a comma and conjunction or a semicolon. The first option "The flight attendant on our return trip from Phoenix" is a fragment as it lacks a verb and is not a complete thought.

Answer:

Gabrielle wept during the movie it had an emotional ending.