Answer:
d horse ,................................ I think
Answer:
Option B
Explanation:
Given
Number of incidences or frequency of an autosomal recessive disease 
As per Hardy Weinberg's equation, frequency of a recessive genotype is 

As per first equation of Hardy Weinberg's -

so ,


As per second equation of Hardy Weinberg's -

Substituting the given values in above equation, we get -
%

Hence, option B is correct.
A chriping bird i would say.