I encountered this question before but it had choices. The missing choices of this question are:
A- immigration 
<span>B-Natural selection </span>
<span>C- Random mutations </span>
<span>D- Geographic isolation 
My answer would be C - RANDOM MUTATIONS.
A. Immigration is not applicable because it states There has been no migration in or out of the population in the last 200 years.
B. Natural selection is not applicable because of it states that the recessive allele frequency has been 0%.
D. Geographic isolation is not applicable because it is not a factor in the increase in the recessive allele frequency.
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Answer:
The Napoleonic Code made the authority of men over their families stronger, deprived women of any individual rights, and reduced the rights of illegitimate children. All male citizens were also granted equal rights under the law and the right to religious dissent, but colonial slavery was reintroduced.
Explanation:
 
        
             
        
        
        
Answer:
mean of all 30 students is 69
Explanation:
given data 
students = 30 
mean = 29 
μ = 68 points
student scored = 98 points
to find out
What is the mean for the class of all 30 students
solution
we know here mean score of 29 students is 68 
so sum of score is here = 29 × 68 
sum of score = 1972 
so
sum of 30 students score is = sum of 29 students score + missing score 
sum of 30 students score is = 1972 + 98
sum of 30 students score is = 2070
so 
mean of all 30 students is = 
mean of all 30 students is = 
mean of all 30 students is 69
 
        
             
        
        
        
I believe the answer is Inference.
Inference began by collecting all the possible premises that could explain the current situation/phenomenon..
After that, we used additional evidence that found along the way to eliminate the premises that wouldn't explain the evidence.