Had to look for the options and here is my answer:
The development of pale skin as based on the study of genetics and mutation has been seen to be linked to the "<span>relatively recent European farming populations." This population had been a great influence for this change in their genes. Hope this helps.</span>
The correct answer is <u><em>Tuberculosis</em></u>, a bacterial infection caused by Koch's bacillus(Mycobacterium tuberculosis)
The answer for this is C.
