Which sentence uses periods correctly?
A.
A U.S. soldier marched down N. Maple Blvd. in the parade.
B.
A U.S. soldier marched down N Maple Blvd in the parade.
C.
A US soldier marched down N. Maple Blvd in the parade.
D.
A US soldier marched down N. Maple Blvd. in the parade.
Please help someone