Use of anabolic steroids leads to elevated concentrations of testosterone and testosterone derivatives. prolonged use of anabolic steroids may lead to use of anabolic steroids leads to elevated concentrations of testosterone and testosterone derivatives. prolonged use of anabolic steroids may lead to decrease in lh and fsh increase in the size of the testes decrease in progesterone increase in gnrh

The given blank can be filled with decrease in LH and FSH.

Explanation:

Anabolic steroids play an effective function in increasing the performance of an athlete. However, there are certain side-effects, which can exhibit extreme issues on the health of an individual. The use of anabolic steroids results in the supra-physiological concentrations of testosterone and its derivatives.  

Via the feedback loop, the generation and discharging of LH and FSH get decreased. The enhanced application of anabolic steroids in comparatively greater concentrations will result in hypogonadotropic hypogonadism, with reduced serum concentrations of testosterone, LH, and FSH.  

it is either c or d and i know for sure it is not a or b