Which sentence contains correctly punctuated items in a series?

A.
The three state capitals with the largest populations are Phoenix; Arizona, Indianapolis; Indiana, and Austin; Texas.

B.
The three state capitals with the largest populations are Phoenix, Arizona; Indianapolis, Indiana; and Austin, Texas.

C.
The three state capitals with the largest populations are Phoenix; Arizona; Indianapolis; Indiana; and Austin; Texas.

D.
The three state capitals with the largest populations are Phoenix, Arizona, Indianapolis, Indiana, and Austin, Texas.