If a trait $\mathrm{A}$ exists in $10 \%$ of a population of an asexually

Question.
If a trait $\mathrm{A}$ exists in $10 \%$ of a population of an asexually reproducing species and a trait $\mathrm{B}$ exists in $60 \%$ of the same population, which trait is likely to have arisen earlier?

solution:
The trait $\mathrm{B}$ has arisen earlier since it in $60 \%$ population while trait $\mathrm{A}$ is merely in $10 \%$ which is newly arisen and not spread to large number.