Step 1: Understand the situation:
A motion is put to vote at a meeting. Sometimes the votes for and against are equal. This is a tie, and the motion can neither pass nor fail.
Step 2: Recall how a tie is broken:
The chairperson has one extra vote, called the casting vote.
It is used only when the votes are equal, and it settles the matter.
Step 3: Check the other options:
An attendance sheet records who came to the meeting. It has nothing to do with votes.
A poll is a method of voting in which each member records a vote. It is not used only on a tie.
A proxy is a person who votes on behalf of an absent member. It does not break a tie.
Final Answer:
The answer is Casting Vote, option (B).