The short remaining end of a cigarette

Stump
Stub
Rag
Scrap

The correct answer is B.

Stub.

A stub is a short piece of something, especially a cigarette that has been smoked down to the end. It can also refer to a small piece of wood or other material that is left over after something has been cut or broken.

The other options are incorrect because:

  • A stump is the part of a tree that remains after the tree has been cut down.
  • A rag is a piece of cloth that is used for cleaning or wiping.
  • A scrap is a small piece of something that is no longer needed.