Which of the following sentences uses commas correctly?

A. I was born in Bryan Texas.

B. January 9, 1983, is my birthday.

C. Patricia Hammond MD will be speaking about skin cancer.

D. In June, 1826 my great-grandfather came to America.

Plz asap read this sentence from paragraph 3 of the article. the boys and girls are merely asked to obtain the signatures of ten friends or relatives. how does the word "merely" affect the meaning of the sentence? a- it suggests that asking people to subscribe to the washington times is something negative. b- it implies that obtaining ten signatures is not a requirement for receiving a prize. c- it downplays the fact that to win the prize, children must ask people to subscribe to the washington times. d- it emphasizes that children receive the prize only if they obtain ten signatures.