Question

Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements. Statements: All Plane are Plain. All Helicopter are Plain. Some Helicopter are Passenger. Conclusions:
I. Some Plane are Passenger.
II. Some Plain are Passenger.
III. No Plain is helicopter.
IV. No Plane are Passenger.

A Only conclusions III follow
B Only conclusions I, II and III follow
C Only conclusion II and either conclusions I or IV follow
D Only conclusions II and IV follow
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