Question

sara has recently joined a sports club and her parents are noticing some changes in her behavior. which of these indicates that sara might be using performance - enhancing drugs?

stunted growth

increased aggression

skin infections

high blood pressure

Explanation:

Performance - enhancing drugs (like anabolic steroids) are known to cause increased aggression (a side - effect related to behavioral changes). Stunted growth is more associated with issues like malnutrition or certain hormonal problems in children, not typical of performance - enhancing drugs in a sports - club - joining context. Skin infections are not a common behavioral or direct effect of performance - enhancing drugs related to behavior. High blood pressure is a physiological effect but not a behavioral change indicator as asked here. So increased aggression is the most likely indicator of using performance - enhancing drugs.

Answer:

increased aggression