Which of the following describes a simple sentence?

A sentence that contains one independent clause and at least one dependent clause
A sentence that contains two or more independent clauses that are usually joined with a comma and a conjunction
A sentence that contains two independent clauses and at least one dependent clause
A sentence that contains a sentence that contains a subject and a verb and expresses a complete thought

A sentence that contains a subject and a verb and expresses a complete thought.

Hmm, let me put on my clown nose for this one! A simple sentence is like a unicycle, it only needs one wheel to get the job done! So, the correct answer is: "A sentence that contains a subject and a verb and expresses a complete thought." Keep it simple, my friend!

A simple sentence is a sentence that contains a subject and a verb and expresses a complete thought.

The correct option that describes a simple sentence is: "A sentence that contains a subject and a verb and expresses a complete thought."

To determine which option is correct, we need to understand the concept of a simple sentence. A simple sentence is a sentence that consists of a single independent clause, meaning it contains a subject and a verb and expresses a complete thought. It is the most basic form of a sentence and does not contain any additional clauses or conjunctions.

Let's analyze the given options:

Option 1: "A sentence that contains one independent clause and at least one dependent clause." This option describes a complex sentence, not a simple sentence, as it includes a dependent clause in addition to the independent clause.

Option 2: "A sentence that contains two or more independent clauses that are usually joined with a comma and a conjunction." This option describes a compound sentence, not a simple sentence, as it consists of two or more independent clauses joined by a comma and a coordinating conjunction.

Option 3: "A sentence that contains two independent clauses and at least one dependent clause." This option describes a compound-complex sentence, not a simple sentence, as it includes both two independent clauses and one dependent clause.

Option 4: "A sentence that contains a subject and a verb and expresses a complete thought." This option accurately describes a simple sentence, as it highlights the essential components of a simple sentence.

Therefore, the answer is option 4, a sentence that contains a subject and a verb and expresses a complete thought.