The presence of some wing spots on butterflies is determined by a single locus with two alleles, T and t. TT and Tt individuals have wing spots; Tt individuals do not. The presence/absence of wing spots does not affect fitness. In one population, the current frequency of individuals with wing spots is 0.65. Assuming Hardy-Weinberg genotype frequencies, what is the probability that the T allele will reach fixation in this population?
a. 35%
b. 48%
c. 41%
d. 17%
e. 65%