True, (sorry my answer needs to be 20 characters long so just ignore this part lol hope that helped)
Number one is B
Number two is A
"A"
The answer option "A" is the only legitimate answer backed by solid proof. it does not make ridiculous statements or proves a ridiculous point like the others. There is no way the other answer options have such causes and effects, and are highly contraindication, and i would always highly recommend getting knowing your family history as genes play a lot in healthcare.