【单选题】

The development of these gene technologies may be far in the future, but the moral and social issues raised by them should be discussed______, for once a technology has been______, it may be difficult to stop or control.
A．(A) democratically… freed

B．(B) presently … invented
C．(C) summarily… contested
D．(D) seriously… veiled
E．(E) hesitantly… ignored