Carla was recently diagnosed with a brain tumour and has since completely lost her appetite. The brain tumour is likely located in her:
dorsal hypothalamus
lateral hypothalamus
ventromedial hypothalamus
medial hypothalamus

hypothalamus

Explanation:

Hunger is partly controlled by a part of your brain called the hypothalamus, your blood sugar (glucose) level, how empty your stomach and intestines are, and certain hormone levels in your body. Fullness is a feeling of being satisfied.

i think the answer is b.

oxygen +1 most likely