What Explanation Would Francis Fukuyama Most Likely Give for the Difficulty

What explanation would Francis Fukuyama most likely give for the difficulty in establishing liberal democracies in Iraq or Afghanistan?

A) The military capacity of these countries is not strong enough to protect citizens from outside threats.
B) Not enough people are voting in elections.
C) Access to judiciaries is limited, making accountability difficult.
D) Not enough time has passed for the development of an institutional balance.