Answer:
C.
.
Step-by-step explanation:
We have been given a square pyramid. We are asked to find surface area of our given pyramid.
The surface area of pyramid will be equal to area of base plus area of four triangular faces.
Area of base of square will be
.



The area of 4 triangular faces will be 4 times area of each triangular face.


We know that area of pyramid would be area of base and area of 4 triangular faces.


Therefore, the surface area of our given pyramid is 31.25 square centimeters.