A compound sentence is defined as?

A compound sentence is characterized by its structure, which consists of two or more coordinate independent clauses. Each of these clauses expresses a complete thought and can stand alone as a separate sentence. They are typically connected by coordinating conjunctions such as "and," "but," or "or," or they may be joined by a semicolon. This formation allows for a more complex expression of ideas, giving depth and richness to the writing.

For instance, in the compound sentence "I wanted to go for a walk, but it started raining," both "I wanted to go for a walk" and "it started raining" are independent clauses that can exist on their own. The use of a coordinating conjunction here emphasizes the relationship between the two thoughts.

The other options do not accurately define a compound sentence. A sentence with one independent clause describes a simple sentence, while a sentence with only one subject doesn't provide enough detail to characterize the structure of a compound sentence. Lastly, stating that a sentence follows a logical sequence is more related to coherence in writing rather than the grammatical structure of a compound sentence.