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 out of the four alternatives.
The reason is a fear that we will not ______________ find ourselves in that higher echelon of posts and achievements that get so many likes and reposts, a sign of success and ____________ in our binary outlook. A darker worry also exists at the back _______ our mind. What if we end __________ in the other group, an object of ridicule, derided as another in a long list of failures _________ embarrassments that go viral for all the wrong reasons?
at the back _______ our mind.

Options

A. for
B. from
C. off
D. of