To break a tie vote on a bill.
Explanation:
The only time the president of the Senate is allowed to vote on legislative matters is to break a tie vote on a bill. If there is a tie with a vote, they will need someone to break it and tip balance, this is where the president of the Senate will step in and vote to come to a conclusion on the bill.
The answer is letter A. Because of the belief of the Chinese of the Mandate of
Heaven, their emperor was not able to boost their economic as well as the
continuous problems in government. The Tang Dynasty decided to merge with
Emperor Gaozu to improve the economic and political sectors during the Tang
dynasty
He always forgets his wife’s birthday.