Which phase of the sexual response is characterized by erection in the male, vaginal lubrication in the female, and increases in muscle tension and heart rate in both males and females?

The Excitement phase of the sexual response is characterized by erection in the male, vaginal lubrication in the female, and increases in muscle tension and heart rate in both males and females

In this phase, an individual becomes excited and aroused for the performance of sexual activity and this phase is termed as the excitement phase of the sexual response. The responses of sexual excitement arise with the erection in the males and the vaginal lubrication in the females.

i might be wrong but i think its a. let me know if i’m right and have a good rest of your day!