In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank 4 out of the four alternatives.
It is this fact which makes it _______________ necessary that our interests shall be broad and pure if our thoughts are to be of this type. It is _________ enough that we have the strength to drive from our minds a wrong or impure thought which seeks ____________. To stand guard as a policeman over our thoughts to see that no unworthy one enters, requires _______ much time and energy. Our interests must be of such a nature as to lead us away from the field of unworthy thoughts _________ we are to be free from their tyranny.
enters, requires _______ much time and energy.

Options

A. to
B. very
C. of
D. too

Answer

D

Explanation

too