Which of the following is a correct unit of area?

The area is the quantity that expresses the extent of a region on the plane or a surface. The area of any shape or figure is a measure of two dimensions, which tells us how much region a figure covers (distance is involved).
Thus, the units of the area will be two-dimensional (with a maximum degree - 2 and a product of two quantities) and will be one of the units of measuring distance (as a product of two distances).
Thus, the correct unit of the perimeter will be option C Square meters (m²).