Which sentence is correctly punctuated?

a. she was born on june 18 2008 in the afternoon.
b. she was born on june 18 2008, in the afternoon.
c. she was born on june 18, 2008, in the afternoon.
d. she was born on june, 18, 2008, in the afternoon.
is this one c ?

M read the sentence.what best describes the underlined part of the sentence,and why? alma plans to visit london and paris, where her parentswent on their first trip together as a married couple.it is a restrictive relative clause because it begins with arelative pronoun, has both a subject and a verb, and is notnecessary to the meaning of the sentence.it is a nonrestrictive relative clause because it begins witha relative pronoun, has both a subject and a verb, and isnecessary to the meaning of the sentence.it is a restrictive relative clause because it begins with arelative pronoun, has both a subject and a verb, and isnecessary to the meaning of the sentence.it is a nonrestrictive relative clause because it begins witha relative pronoun, has both a subject and a verb, and isnot necessary to the meaning of the sentence.