Fill in the blanks with most appropriate option.Although a number of objects, such as kites, birds, aeroplanes move in space, but their shadow is not seen on the earth. This is due to the reason that the ___(i)___, the region of complete ___(ii)___ is not able to reach the earth. The region of partial ___(iii)___, that is the ___(iv)___ reaching the earth is too large and too faint to be visible to us.

• A. (I)(II)(III)(IV)PenumbraDarknessBrightnessUmbra               
• B. (I)(II)(III)(IV)PenumbraBrightnessDarknessUmbra               
• C. (I)(II)(III)(IV)UmbraDarknessBrightnessPenumbra               
• D. (I)(II)(III)(IV)UmbraBrightnessDarknessPenumbra