I’d say A is the best option
Hope this helps
-AaronWiseIsBae
Answer: Total volume of fat in his body is 
Explanation:
Density is defined as the mass contained per unit volume.

Given:
Density of fat cells = 
mass of fat cells = 20% of the mass of a 70 kg student's body is fat= 
Volume of fat = ?
Putting in the values we get:


Thus total volume of fat in his body is 
You should have a doctor immediately evaluate the patient and follow the doctor's orders.
Answer:
Enrique's story contradicts: <u>The gateway hypothesis</u>
Explanation:
The gateway hypothesis states that a person that abuses the cosumtion of an specific drug for a period of time, can inherntly grow an inclination to try other llicit drugs that are harder or more harmful.