Which of the following best summarizes the findings reported in the passage about the effects of food deprivation on monkeys' behavior? A. Food deprivation has no effect on aggression among monkeys. B. Food deprivation increases aggression among monkeys because one of the most potent stimuli for eliciting aggression is the competition for incentives. C. Food deprivation may increase long-term aggression among monkeys in a laboratory setting, but it produces only temporary increases among monkeys in the wild. D. Food deprivation may temporarily increase aggression among monkeys, but it also leads to a decrease in conflict. E. Food deprivation decreases the intensity but not the frequency of aggressive incidents among monkey.