Identify the correct code for Assertion A and Reason R as given below:Assertion A: Most of the weakest States in the world are concentrated in sub-Saharan Africa.Reason R: These States fail the most basic test of State power; they are unable to maintain domestic order and personal security, civil strife and even civil war become almost routine.Codes:

• A. Both A and R are true, but R is not the correct explanation of A.
• B. Both A and R are true and R is the correct explanation of A.
• C. A is true, but R is false.
• D. A is false, but R is true.