Answer:
2) medical exams can help people live longer lives
Explanation:
medical exams usually cost money, they're not always mandatory, and people can still become ill, so 2 is the only one that makes sense (and it does!)
True, they have collected data from people with and without the flu virus
1 - Syphilis
2 - Gonorrhea
3 - Chlamydia
4 - Trichomoniasis
5 - Pediculosis Pubis
6 - Genital Herpes
7 - HPV
Frostbite is the death of a body part due to lack of blood supply can accompany very severe frostbite.
