Which sentence shows CORRECT capitalization AND punctuation?

A.
After graduation, my aunt sally and I are, going on vacation, to New York, Boston, and Philadelphia.
B.
After Graduation, my aunt Sally and I are going on Vacation to New York, Boston, and Philadelphia.
C.
After graduation, my Aunt Sally, and I are going on vacation to new york, boston, and philadelphia.
D.
After graduation, my Aunt Sally and I are going on vacation to New York, Boston, and Philadelphia.

D. After graduation, my Aunt Sally and I are going on vacation to New York, Boston, and Philadelphia.