What Accounts for the Regioselectivity of Radical Halogen

What accounts for the regioselectivity of radical halogen?

A) More substituted carbons have lower C-H bond disassociation energies than less substituted carbons.
B) More substituted carbons have higher C-H bond disassociation energies than less substituted carbons.
C) More substituted carbons have lower C-X bond disassociation energies than less substituted carbons,where X represents a halide.
D) More substituted carbons have higher C-X bond disassociation energies than less substituted carbons,where X represents a halide.