Which sentence is punctuated correctly?

A

The car I bought has spare tires, which are brand new; a stereo, which has just been installed; and a great engine, which has been newly tuned.

B

The car I bought has spare tires, which are brand new; a stereo, which has just been installed, and a great engine, which has been newly tuned.

C

The car I bought has spare tires: which are brand new a stereo: which has just been installed, and a great engine: which has been newly tuned.

D

The car I bought has spare tires; which are brand new, a stereo; which has just been installed, and a great engine; which has been newly tuned.