Statements: a Some blondes are stupid
b Some trees are blondes.
c. All stupid are girls.
Conclusions: Some stupid are blondes.
II Some stupid are not blondes.
IV Some girls are blondes.
IV. Some trees are stupid.

Options

A. I, II and III follow
B. I, III and IV follow
C. Either I or II and III follow
D. I and III follow

Answer

D

Explanation

Conclusion I follows from (a), on conversion. Now, (a)+(c) gives Some blondes are gIIrs [ `:.` I+A=I]. On conversion, this gives conclusion II. No other conclusion is possible .