A Monochromatic Point Like Light Source Emits Electromagnetic Power Uniformly

A monochromatic point like light source emits electromagnetic power uniformly in all directions.The Poynting vector in a point situated at 0.500 m from the source is 0.375 W/m².The power of the source is

A) 1.00 W.
B) 1.18 W.
C) 1.29 W.
D) 1.32 W.
E) 1.45 W.