The Development of Golden Rice 1 and 2 Are Different

The development of golden rice 1 and 2 are different from that of other GM crops because

A) highly radioactive materials that continue to contaminate these forms of rice.
B) genes spliced from corn and beans could not contribute to benefiting a superweed.
C) they are controlled by a large for-profit corporation.
D) they have caused many serious and fatal allergic reactions in people eating them.