Each of the 10 children born to ernest and elvira orangeburg has been born with red hair. each child is also very intelligent and athletic. the orangeburg's are expecting an 11th child who is also likely to be born with the same traits, according to as described in the

nature; Nature versus Nurture controversy

Explanation:

Nature versus nurture controversy / debate involves extent to which the particular aspects of the behavior are the product of either inherited  or acquired influences.

Thus, having red eyes is a factor of nature and such case study is described in the Nature versus Nurture controversy.

answer; i believe that the correct answer is rapid and subsequently slow down;