The answer is C because of a person or their judgement
Answer: It's because he/she is constantly subjecting their legs to gravity, which veins are fighting against to move blood back to the heart.
Exothermic reactions I think
There are multiple ways to burn calories such as doing workouts, running etc but if you would like to enhance it you could go on diets (Eat or drink certain foods such as Coffee that is known to boost the metabolism and burn more calories) You could also slowly start to disinclude certain items in your fooy pyramid such as dairy (or lessen the intake of dairy and fatty foods).
