Why did Alexander Graham Bell call for the banning of marriage between two Deaf people? A.
Bell believed that Deaf people would have more career opportunities if they were married to a hearing partner.

B.
Bell said that marriage between two Deaf individuals posed a threat of a deaf-mute variety of the human race.

C.
Bell did not want Deaf people to feel left out of society, so he campaigned to institute marriages between Deaf and hearing individuals.

D.
Bell believed that Deaf people's ability to learn spoken English would be hindered by marrying each other, rather than marrying a hearing person.