P.E could be one maybe ( their were no options so im not sure)
Answer:
I would probably say the first 3 and the last option.
Explanation:
makes the most sense, sorry if it's wrong.
Physical activity and Protein intake.
Answer:
10,000
Explanation:
The human nose has roughly 400 types of scent receptors that can detect at least 1 trillion different odours. The human nose can distinguish at least 1 trillion different odours, a resolution orders of magnitude beyond the previous estimate of just 10,000 scents
hope this helps