Respuesta :

Landform A is called a Stack or Sea Stack. They are formed when part of the headland undergoes hydraulic action. It is then further shaped by the force of the waves and wind. Therefore, it is a product of erosion.

The correct answer for above statement is:

sea stack

Explanation:

A stack or sea stack is a geological landform consisting of a sheer and usually vertical line or columns of rock in the sea close to a coast, created by wave erosion. Stacks are created over time by wind and water, methods of marginal geomorphology.