- Karnoven heart rate Ratio Method
Advantages : Easy to do, cost friendly
Disadvantages : can only predict the amount of maximum oxygen intake
-Vo2max
Advantages : this test directly measures body oxygen consumption , the other tests only try to estimate
Disadvantages : Relativiely time consuming and high cost
I think it might be A but I'm not sure
Answer:
i think it is marijuana
Explanation: because it slows your reflexes and its not a psychoactive drug
So it is D
-Brayden ;)