Which of the following is a function of only the House of Representatives, not the Senate?

A. Initiating legislation

B. proposing tax bills

C. Approving treaties

D. Establishing law

Proposing tax bills is a function of only the House of Representatives and not the senate. So the correct option for the given question is option "B". The House of Representatives has the exclusive right as far as proposing tax bills are concerned. The Senate has the power to review the bill and then approve. The Senate can never raise any kind of tax bill. Although the Senate is far more powerful than the House of Representatives but still the Senate has to depend on the House of Representatives regarding certain matters of public interest.