Because semen swims upstream. The bladder is not located above the vagina (internally). If the ejaculation takes place in the vagina, the semen will swim up towards the cervix.
How many calories do you have to burn to lose 2 pounds a week?
One pound is equivalent to 3,500 calories, which means you need to cut out 1,000 calories a day for one week to lose 2 pounds.
The answer to your question is A or C, because from doing weight resistance training you would gain more muscle.
Sprinting is an anaerobic form of exercise