Q:

Statements:
 All Lock is Clock
 All Clock is Key
 Only a few Key is Door

Conclusions:
 I. Some Door is Clock
 II. All Key can never be Lock

• 1
  Only I follows
• 2
  Only II follows
• 3
  Either I or II follows
• 4
  Both I and II follow
• 5
  Neither I nor II follows