Alexa is a serial monogamist. She is currently in a relationship with Jeremy, but during the last two years, she has also been in relationships with Max and David. Based on the information provided, Alexa has level of risk for sexually transmitted infections compared to her friend Jenna who has been in a mutually monogamous relationship with Derek for the last two years.

A higher

Explanation:

Based on the scenario being described within the question it can be said that the Alexa has a higher level of risk for sexually transmitted infections compared to her friend Jenna. This is mainly due to the fact that Alexa has had more sexual partners than Jenna has which means that she has a had a higher chance of having been exposed to a sexually transmitted infection than Jenna has.

i think it is the third one.

answer; under developed;