Which is a compound sentence?

i managed to complete the task, but i missed the deadline.

my brother, who has always played baseball, earned a sports scholarship to college.

while studying for the test, marisa realized she was not prepared.

the man who called tonight wants us to hire him to remodel our bathroom.

A sentence which contains two independent clauses with related ideas is referred to as a compound sentence.

One way to punctuate a compound sentence correctly is to join the two independent clauses with a semicolon and a coordinating conjunction.

Therefore, from the above options sentence which is a compound sentence is "I managed to complete the task, but I missed the deadline."

Wherein the two independent clauses are joined by conjunction 'but.'

The answer to your question would be that the compound sentence is the following one: I managed to complete the task, but I missed the deadline.

A compound sentence is a sentence that contains at least two independent clauses joined by a comma, a semicolon, or a conjunction. In this case, the two clauses are joined by the coordinating conjunction but.

1. I managed to complete the task

but

2. I missed the deadline

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hey you do know that you didn't upload a file or picture cause we don't know what you are talking about the monster.