The true elixir of life near to our hands is the commonest of all liquids, plain water. It has 441 a role of vast Significance in 442 the course of earth's history and 443 to play the leading role in the 444 of life on the surface of our 445 . Indeed, there is nothing here which 446 so much to the beauty of the 447 as water, be it justa little 448 trickling over the rocks or a 449 pond by the way side where animals 450 their thirst.

Options

A. star
B. constellation
C. planet
D. sea

Answer

C

Explanation

planet (Noun)