P @ Q means P is greater than Q.
P `underlinecancel("@")` 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 `underlinecancel("©")` Q means P is either smaller than or equal to Q.
Statements: K @ T, S = K, T `underlinecancel("©")` R
Conclusions: I. S @ R II. T = R

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: `K gt T, S = K, T le R`
Conclusions: I. `S gt R` II. T = R
I is wrong as R is not less than any number in the given statements (Tip 8: quick method). II is wrong by virtue of Tip 7: quick method.