Which of the following is the proper way to punctuate this sentence?
A.
My brother Dustin; who is 11 months older than I am; works at a sign factory.
B.
It is correct as is.
C.
My brother, Dustin, who is 11 months older than I am works at a sign factory.
D.
My brother Dustin who is 11 months older than I am works at a sign factory.