Which of the following statements about first sexual intercourse is true? A. People who abstain from first sexual intercourse until marriage are more likely to acquire an STI. B. Young people who participate in first sexual intercourse before age 14 are significantly more likely to have more sexual partners throughout their lives. C. Young people who engage in first sexual intercourse before the age of 14 are more well-rounded. D. none of the above Please select the best answer from the choices provided.