Which of the following best describes sti symptoms? a. symptoms for stis are similar in nature and severity. b. symptoms may not be present even though there is an infection. c. visible symptoms are limited to the genital area. d. symptoms can be treated with over-the-counter medicationwhich of the following best describes sti symptoms? a. symptoms for stis are similar in nature and severity. b. symptoms may not be present even though there is an infection. c. visible symptoms are limited to the genital area. d. symptoms can be treated with over-the-counter medication