10. Which of the following sentences contains a compound subject?

A. The executive branch includes the president, the vice president, and the president's cabinet.

B. The Supreme Court, which makes decisions about laws, is part of the judicial branch.

C. The three branches of the U. S. government are legislative, executive, and judicial.

D. The Senate and the House of Representatives are part of the legislative branch.

D. The Senate and the House of Representatives are part of the legislative branch.

Explanation:

The sentence which contains a compound subject is:

The Senate and the House of Representatives are part of the legislative branch

Explanation:

A sentence which consists of two or more than two subjects is said to be termed as the compound subject. The subjects are joined with the help of the conjunction like and, or or nor. In the above sentence, 'the senate' and 'the House of Representatives' are the subjects and they are joined but conjunction 'and'.

The Senate and the House of Representatives are part of the legislative branch.  

"The Senate and House of Reps..." Is a compound subject combined by "and"