Answer:
in my point of view i think A is the answer
Because the average temperature in the room also increased.
When we feel excitement, our blood will regulate faster and create faster metabolism. This will lead to higher body temperature because of the nutrient burning process. If this happen to all people in the arena, the average temperature is bound to be increased.<span />
I used this for the answer and got it right I did this question before so their ya go
The finger like projections in the small intestine are called intestinal villus or villi.
