Final answer:
When a locus is in linkage disequilibrium with nearby markers and the allele occurs in high frequency, it is logical to assume that this allele has been favored by natural selection.
Step-by-step explanation:
When a locus is found to be in linkage disequilibrium with nearby markers and the allele at this locus is found to occur in high frequency, it is logical to assume that this allele has been favored by natural selection.