Most people don't have any symptoms, but they can still infect other people through sexual contact.
Chondro- refers to cartilage; -malacia means “softening,” so chondromalacia means “softening of the cartilage.”
Okay, warning: (COULD BE WRONG) Just to help you out I think 3, 5, and 6, are correct. (COULD BE WRONG, YOU MIGHT GET A LITTLE CREDIT)