It would be D. because nothing can be 100% you can still get pregnant from all of those things.
hope i helped! :) <span />
Cerebral palsy-<span>Symptoms include exaggerated reflexes, floppy or rigid limbs, and involuntary motions.
alzheimer's disease- </span><span>A progressive disease that destroys memory and other important mental functions.
parkinson's disease- </span><span>Parkinson's often starts with a tremor in one hand. Other symptoms are slow movement, stiffness, and loss of balance.
THE ANSWER IS B (:</span>
Environmental Science
Hope this helps!
A. Fertility Awareness.
Birth control affects your hormones, and condoms block the sperm from fertilizing the egg, so the only reasonable answer is A.
