Why do animals that are active at night tend to have trouble seeing in color? A. Animals that are active at night have more rod cells because these cells are more sensitive to light. B. Animals that are active at night have more cone cells because these cells are more sensitive to light. C. Animals that are active at night have equal numbers of each type of cone cell so they can detect as much light as possible. D. Animals that are active at night don’t have as many photoreceptors as animals that are active during the day, so they can’t see color.