P `o+` 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("@")` means P is either smaller than or equal to Q.
Statements: I `o+` O, R `underlinecancel("©")` I, X = R, J @ Z
Conclusions: I. Z = I II. Z `o+` I

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

C

Explanation

Statements: `I gt O, R ge I, Z = R, J lt Z`
Conclusions: I. Z = I II. `Z gt I`
for a conclusion between Z and I, `R ge I` and Z = R are relevant statements. Theygive: `Z ge I`. By check 3, either follows.