Assertion (A): Mangroves are very specialized forest ecosystem of tropical and sub-tropical regions bordering certain sea coasts. Reason (R): They stabilize the shoreline and act as bulwark against encroachments by sea In the context of the above two statements, which of the following is correct?

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