Which of the following best describes the change in kdr genotype frequencies over

Which of the following best describes the change in kdr genotype frequencies over time in a. gambiae? a)from pre-2006 to post-2006, the frequency of the r/r genotype increased slightly while the frequencies of +/+ and +/r genotypes decreased dramatically.b)from pre-2006 to post-2006, the frequency of the r/r genotype increased dramatically while the frequencies of +/+ and +/r genotypes decreased dramatically.c)from pre-2006 to post-2006, the frequency of the r/r genotype increased dramatically while the frequencies of +/+ and +/r genotypes remained relatively constant.d)from pre-2006 to post-2006, there was little change to the r/r, +/+, and +/r genotype frequencies.