Choose the sentence with the correct comma usage.
A Mr. Smith a brave soldier fought in World War II.

B Mr. Smith a brave soldier, fought in World War II.

C Mr. Smith a brave soldier fought, in World War II.

D Mr. Smith, a brave soldier, fought in World War II.

Choose the sentence with the correct comma usage.

A. I, too, want to go to the store.

B. I want to go to the store, too.

C. I too, want to go to the store.

Thank you to anyone who can help! Will give marks to whoever is correct.