This depends on which sexually transmitted infection (STI) you have. Some STIs cause few or no symptoms, so you may not know you have one.
Answer:
Uhhhhhh.............. I think it is T.
Explanation:
It would be the affect-as-information theory as it's the theory where people tend to respond to a situation based on their mood and feelings.
tTo be honest, we all subconsciously believed this and sometimes it would be true :D