[Solved] Which of the following is not a problem in the People's Republic of China following the economy's rapid growth? A) income inequality B) labor issues C) lack of potential for foreign trade because of China's comparative advantage in the production of all goods D) pollution Testosterone Supplements: Products, often in the form of pills, injections, or gels, designed to increase testosterone levels in the body, used for medical reasons or to enhance physical performance or libido. Viagra: A medication used primarily in the treatment of erectile dysfunction, helping to increase blood flow to the penis to help a man get and keep an erection. Erectile Disorder: This refers to a type of sexual impairment where an individual cannot sustain or achieve penile erection during sexual engagement. Erotic Plasticity: Erotic plasticity refers to the degree to which an individual's sex drive can be changed by societal, situational, and cultural influences.