Ans is None. I am not getting why is option III 4-n lesser than n?
n can be negative. For example, n can be minus 1, the 4 minus n will be 5>4.
That’s not the example you want. if n = 5, 4 - 5 = -1 which is less than 5.
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Thank you so much. I hope I don’t make such mistakes in the real exam.