Which of the Following Is an Explanation

Multiple Choice

Which of the following is an explanation?

A) Since the company is doing well, I will give my employees raises.
B) Since the spaceship crashed in Roswell, that is where the aliens will want to build their embassy.
C) Since the dance studio was established, it has never produced a professional dancer.
D) Since the future cannot be known, no one truly has the gift of fortune-telling.
E) Since these stray dogs have been neutered, they are someone's pets.