77. According to the inequality known as Hamilton's rule (rB ＞ C), (A) natural selection is more likely to favor altruistic acts when the beneficiary is an offspring than when it is a sibling. (B) natural selection would favor altruistic acts when the benefit to the receiver, reduced by the coefficient of relatedness, exceeds the cost to the altruist. (C) natural selection could not favor altruism if the altruist loses its life. (D) kin selection is a stronger selection factor than the individual reproductive success favored by natural selection. (E) altruism must always be reciprocal.