Final answer:
Men's diets and exposure to environmental substances can negatively affect reproductive health. Unhealthy diets, substance abuse, and toxins contribute to infertility risks and can cause severe irreversible conditions.
Step-by-step explanation:
Men's diets and exposure to certain substances in their environment can indeed affect reproductive health. The correct answer to the question is (c) They can negatively affect reproductive health. Substances like heavy alcohol use, drug abuse, cigarette smoking, and exposure to environmental toxins, including pesticides or lead, can increase the risk of infertility.
Medications, serious diseases, and treatments such as radiation or chemotherapy for cancer are also contributing factors. Advanced age is another risk factor for decreased fertility. Unhealthy diets may lack essential nutrients needed for good reproductive function. Furthermore, exposure to environmental toxins can lead to severe and irreversible health effects such as impaired heart function, testicular atrophy, and prostate enlargement.