What is the definition of compound sentences

Question

A sentence with one subordinate clause
A sentence with two or more main clauses, and two or more subordinating clause
A sentence with two or more main clauses
A sentence with one main clause and one subordinate clause

Answer 1

The correct definition of a compound sentence is: A sentence with two or more main clauses.

Compound sentences typically use coordinating conjunctions (such as "and," "but," or "or") to connect the main clauses.