Answer: B
Explanation: The correct answer is letter B, a built-in tendency to regulate bodily conditions.
Homeostasis is related not only to bodily conditions but also with psychological aspects. In terms of biological homeostasis, an example could be when It's hot and you feel thirstier than you normally do, that is because your body needs to mantain inner temperature and because it's hotter outside, you will need to drink more liquid in order to balance the rising of temperature.