How is a compound sentence formed?

ABy joining a simple sentence with a dependent clause
BBy joining two simple sentences with a comma and a coordinate conjunction
CBy joining a dependent and independent clause with a conjunction
DBy joining two independent clauses and one dependent clause

Verified Answer :

Your answer is C.

I love to go walking. This is a simple sentence. Running with my dog is a dependent clause. I love to go walking and running with my dog. This is a good sentence because I put a conjunction and added the sentences together.