Choose the appropriate code of Assertion and Reason.Assertion A : Security essentially implies the absence of real, potential or perceived threats and challenges whether stemming from external or internal sources.Reason R : The threat perceptions are largely diverse to preclude a common approach.Codes :

• A. A is correct, R is not correct.
• B. A is not correct, R is correct.
• C. A and R both are not correct.
• D. A is correct and R is the logical explanation of A.