Consider the Bond Dissociation Energies Listed Below in Kcal/mol

Multiple Choice

Consider the bond dissociation energies listed below in kcal/mol.
CH₃-Br 70
CH₃CH₂-Br 68
(CH₃) ₂CH-Br 68
(CH₃) ₃C-Br 65
These data show that the carbon-bromine bond is weakest when bromine is bound to a ________.

A) methyl carbon
B) primary carbon
C) secondary carbon
D) tertiary carbon
E) quaternary carbon