【单选题】If the phenomenon 'extinction risk increased significantly with decreasing heterozygosity' (lines 9-10) agrees with the proposed effect on extinction, the passage assumes
A.
heterozygosity is an indicator of increasing inbreeding depression in assimilated metapopulations
B.
heterozygosity is unrelated to the degree of inbreeding depression in assimilated metapopulations
C.
heterozygosity is an indicator of decreasing inbreeding depression in isolated metapopulations
D.
heterozygosity is an indicator of increasing inbreeding depression in isolated metapopulations
E.
heterozygosity is an indicator of decreasing inbreeding depression in assimilated metapopulations