multiple choice question\nidentify a true sta...
multiple choice question\nidentify a true statement about drug testing in international competitions after the international olympic committee established rules for drug testing in 1968.\n\namphetamine is the sole drug that has been used by athletes since the drug - testing rules were established by international olympic committee.\nin the 2012 london olympics, there were more disqualifications due to a drug - positive urine test than in the three previous games.\nmore athletes started refusing to take drug tests since the framing of drug - testing rules by the international olympic committee.\neach subsequent international competition since the 1968 mexico city olympics has had more drug testing.
Answer
# Answer:
D. Each subsequent international competition since the 1968 Mexico City Olympics has had more drug - testing.
# Brief Explanations:
Amphetamines are not the sole drug used by athletes post - 1968. There were not more disqualifications in 2012 London Olympics compared to previous three games due to drug - positive tests. There is no evidence that more athletes started refusing drug tests since 1968. However, over time, drug - testing has increased in subsequent international competitions after 1968 as anti - doping measures have become more stringent.