Answer:
25 micrograms per cubic meter
Explanation:
Well i am not 100 percent sure but i think the answer is D.
Because this is who we are and it is just the way of life that you are born and developed in the body were in
MMR vaccine can be associated with risk of twitches in babies which is lower between 12-15 months of age. After that time risk of twitches is getting higher.