B. Testicle, because it secretes hormones
You can't see them without a microscope, nor can you smell or taste them individually.
I believe cancer causes death for all age groups because it's something that any age can get
Try chewing some gum, of your choice,
don't use mouthwash for a bit (the alcohol can make your mouth drier)
reduce your caffeine intake, stay away from caffeinated drinks like coffee, and even soda.
