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: Some keys are chains. All chains are locks. No lock is a rock. Conclusions: (I) No rock is a key. (II) At least some keys are locks.

A None of the conclusion follow

B Both conclusions I and II follow