the question does not present the picture, but this does not interfere with the resolution
we know that
the axis of the sphere passes through its center, therefore the axis is equal to the diameter of the sphere
so
the diameter of a sphere=16 units
radius of a sphere=16/2-----> 8 units
the surface area of a sphere=4*pi*r²----> 4*pi*8²----> 256*pi units²
the answer is
256*pi units²
