Question

Statements: All valleys are mountains. No sea is a mountain. Some plains are seas. Conclusions:
I. Some valleys are plains.
II. No plain is a mountain.
III. No sea is a valley.

Three Statements are given followed by Three conclusions numbered I, II and
III. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements.

A Only conclusion II follows.

B Only conclusion III follows.

C Only conclusion I follows.

D Both conclusions I and II follow

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