P @ Q means P is greater than Q.
P `underline"@"` Q means P is either greater than or equal to Q.
P = Q means P is equal to Q.
P © Q means P is smaller than Q.
P `underline"©"` Q means P is either smaller than or equal to Q.
Statements: `L underline"©" K, M © N, K = M`
Conclusions: I. N @ L II. `K underline"©" N`

Options

A. If only I is true
B. if only conclusion II is true
C. if either conclusion I or II is true
D. if either I nor II is true

Answer

D

Explanation

Statements: `L le K, M lt N, K = M`
Conclusions: I. `N gt L` II. `K lt N`
For I, all statements are relevant. Combining `M lt N` and K = M we get `K lt N`. This means II is wrong. But `K lt N` and `L le K` together given `L le K lt N` which means `L le N`. But `L le N`. But `L le N` is not the same as `L lt N`. So, I is also wrong.