In a square of opposition, match List I (Proposition given as true) with List II (Resultant) and choose the correct answer from the options given below.

List I

i.'A' being given as true

ii.'E' being given as true

iii.'I' being given as true

iv.'O' being given as true

List II

a.'O' is undetermined

b.'I' is undetermined

c.'I' is true

d.'I' is false

Ai-c, ii-d, iii-a, iv-b ✓ Correct

Bi-d, ii-a, iii-c, iv-b

Ci-a, ii-d, iii-b, iv-c

Di-c, ii-d, iii-b, iv-a

Correct answer: (A) i-c, ii-d, iii-a, iv-b

Explanation

A given true makes its subaltern I true, so i pairs with c.

E given true makes its contradictory I false, so ii pairs with d.

I given true leaves its subcontrary O undetermined, so iii pairs with a.

O given true leaves the I undetermined, since O does not fix I, so iv pairs with b.

The matching is i-c, ii-d, iii-a, iv-b.

Want more like this? Create a free account to practise a full test, track your progress, and get spaced-repetition review.