Which of the following symbols should be placed in the blank spaces respectively (in the same order from left to right) in order to complete given expression in such a manner that makes the expressions `'FgtN'` and `'UgtD'`, definitely false.
`F__O__U__N__D`

Options

A. `lt , lt , gt , =`
B. `lt , = , = gt`
C. `lt , = , = , lt`
D. `ge , = , = , ge`

Answer

C

Explanation

Option (a) : `F lt O lt U gt N = D`.
So `U gt D` is definitely true .
But we can.t compare F and N .
Option (b) : `F lt O = U = N gt D`
So , `F lt N` is definitely true .
So, `F gt N` is definitely false .
But `U gt D` is definitely true .
Option (c) : `F lt O = U = N lt D` .
So, `F lt N` means `F gt N` is definitely false .
Also , U `lt` means `U gt D` is definitely false .
Option (d) : `F ge O = U = N ge D` .
So , `F ge N`
So , `F gt N` may be true
Also , `U ge D`
So `U gt D` may be true .