Correct option is A
In groundwater hydrology:
An aquiclude is a geological formation that:
Contains water, but
Is impermeable or nearly impermeable, and
Cannot transmit a significant quantity of water.
Clarifying other options:
Aquifer → Stores and transmits appreciable quantities of groundwater.
Perched aquifer → A localized aquifer above the main water table.
Confined aquifer → An aquifer bounded by impermeable layers but still transmits water under pressure.
