In the question, two statements are given, followed by two conclusions, I and II. You have to consider the statements to be true even if it seems to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements.
Statements:
I. No rubbers are plastic
II. AII polymers are rubber
Conclusions:
I. Some plastic are polymers
II. No polymers are plastic1
Only conclusion I follow
2
Only conclusion II follows
3
Both conclusions I and II follow
4
Neither conclusion I nor conclusion II follows