The correct answer is D.
Generic medications include the same active ingredients as the original medication. The only difference is that generic medicines are cheaper because they don't have the original pharmaceutical brand name on them so you are paying for the drug not the drug and the name that comes along with it. There is nothing wrong with generic medicines. The coating of the tablet might differ or the dosages but essentially it is the same medication.
There will be a slim chance of the brother be affected because the trait would turn out to be recessive which means the person genes would be carried out without appearing in that person
That system is called the immune system
