When the killer paramecia (K/K+ kappa particle) and sensitive Paramecium k/k) hybrid, if the bonding time is long, the result are

A、K/K(sensitive)andk/k(sensitive);
B、K/k+kappa(killer)andK/k(sensitive);
C、K/K(sensitive)andk/k+kappa(sensitive);
D、K/k+kappa(killer)andK/k+kappa(killer)