Which greeting uses commas correctly?
A.
Dear Aunt Merrie,
B.
Dear, Aunt Merrie
C.
Dear, Aunt Merrie,
D.
Dear Aunt, Merrie,
A.
Dear Aunt Merrie,
B.
Dear, Aunt Merrie
C.
Dear, Aunt Merrie,
D.
Dear Aunt, Merrie,