Obesity Is Directly Related to Low Testosterone Levels

Obesity is directly related to low testosterone levels.Why would this be of concern for a male-female couple interested in having a baby?

A) Testosterone is involved in sperm production,so obese males may be more likely to have infertility problems.
B) Low testosterone levels in males will cause lower luteinizing hormone (LH) production in females during reproduction.
C) Low testosterone levels in males will cause the adrenal glands to reduce production of other sex hormones.
D) Low testosterone levels in males will cause their offspring to have delayed secondary sex characteristic development.