Which sentence properly combines these two sentences through the use of an appositive?

my younger brother is a baseball player. his name is james.

a. james, my younger brother, is a baseball player.

b. james is a baseball player; he’s also my younger brother.

c. james is my younger brother, and he is a baseball player.

d. my brother james is a baseball player, and he is younger than i.

the president was the speaker and it was a great part of history.

explanation:

video of the national aeronautic space administration's (nasa) coverage of president john f. kennedy’s address at rice university, houston, texas, concerning the nation's efforts in space exploration. in his speech the president discusses the necessity for the united states to become an international leader in space exploration and famously states, "we choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard."

i took this test im trying to remember i think it is the first one im super sorry if i remembered wrong!