The answer is: Chloroplasts.
According to science, D would be the correct answer. Hope this helps!
E is for Ethical, an upright person
N is for Noble, self-sacrificing
E is for Excellent, of the finest character
R is for Remarkable, so exceptional
G is for Genteel, elegantly mannered
Y is for Youth, eternally young at heart
DNA profiles from a crime scene can be entered into CODIS. Therefore, law enforcement officers have the ability to identify possible suspects when no prior suspect existed. This is the best i can do, I dont know about exactly "at home" tests.
C because ye ye ye ye ye ye ye