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:
1. No doors are rugs.
2. No rugs are leopards.
Conclusions:
I. No leopards are doors.
II. Some doors are not leopards.

​Statements:
1. No doors are rugs.
2. No rugs are leopards.

​Conclusions:
I. No leopards are doors. (False, there is no direct or indirect relation between leopard and doors).
II. Some doors are not leopards. (False, some doors are not leopards is a possibility, but the statements do not confirm it).

So, ​Neither conclusion I nor II follows.

Thus, correct option is (a).