which is a compound sentence?\no i managed to complete the task, but i missed the deadline.\no my brother…

which is a compound sentence?\no i managed to complete the task, but i missed the deadline.\no my brother, who has always played baseball, earned a sports scholarship to college.\no while studying for the test, marisa realized she was not prepared.\no the man who called tonight wants us to hire him to remodel our bathroom.
Answer
Brief Explanations:
A compound - sentence has two independent clauses joined by a coordinating conjunction. "I managed to complete the task, but I missed the deadline" has two independent clauses "I managed to complete the task" and "I missed the deadline" joined by "but". The other sentences are complex sentences with dependent clauses.
Answer:
I managed to complete the task, but I missed the deadline.