Select the most appropriate set of words from the given choices to fill in the blanks.

It will take some time for many South koreans to ___________ the conflicting images of North Korea, let alone to___________ what to make of their northern cousins

A. reconcile, decide

B. understand, clarify

C. make out, decide

D. reconcile, understand

Please do not use chat terms. Example: avoid using "grt" instead of "great".