Correct option is B
Given:
A. Some animals are colour-blind.
B. All colourfuls are colour-blind but not animals.
Logic:
The least possible Venn Diagram is as follows:
By options:
i) All colour-blinds are colourful. → False ( As some color blinds which are animals cannot be colorful).
ii) Some colour-blinds are animals. → True (As some animals are colour-blind then some colour-blind are animals will also be a definite statement).
iii) All colour-blinds are animals. →False (as All colourfuls are colour-blind but not animals.)
iv) Some animals are colourful. →False ( as All colourfuls are colour-blind but not animals.).
Thus, the correct answer is (b) "Some colour-blinds are animals".
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