Some organisms do not actively raise their young. Other animals have a period during which the young are part of a family unit. Which of the following is the best description of the results of these two styles of behavior?

A)The absence or presence of parents has no effect on the type of behavior exhibited by their young.
B)The organisms that are part of a family unit will exhibit fewer behaviors than those that are not raised by parents.
C)The organisms that are not raised by their parents will rely more heavily on fixed behaviors when young.
D)The organisms that are not raised by their parents will rely more heavily on learned behaviors when young.