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.
Statements:
No telegram is a telephone.
All postcards are telegrams.
All envelopes are telegrams.
Conclusions:
I. Some postcards are telephones.
II. No envelope is a telephone.
Ill. No telephone is a postcard.

Options

A. All of the conclusions follow
B. Only conclusions II and III follow
C. Only conclusions I and III follow
D. Only conclusions I and II follow

Answer

B