Assertion (A): Mangroves are very specialized forest ecosystems of the tropical and sub tropical regions bordering certain sea coast.
Reason (R) : They stabilize the shoreline and act as bull work against encroachment by sea.

Options

A. Both (A) and (R) are correct and (R) explains (A).
B. Both (A) and (R) are correct but (R) does not explain A
C. (A) is true but (R) is false.
D. (A) is false but (R) is true.

Answer

A