The testosterone level in Brian's blood has dropped below the normal range. Which sequence of events will happen as a result?

Decrease in testosterone level in men is normal. The side effects of this includes reduced sexual desire, infertility, increased body fat, fragile bones, increased fatigue, sleep disturbances and many others. Starting at age 30, the levels of this hormone starts to slowly dip at around 1% per year.

Think its B but not for sure