Answer:
C) deciding on priorities for legislation
Explanation:
As the Chief Agenda setter the president determines certain issues and responsiblities, some of which are:
1. Setting up specific programs for Congress to consider enacting into law
2. Setting up government's agenda during annual State of the Union address
3. Helping Congress to prepare annual federal budget.
Hence, it can be concluded that, Mr. President, as the Chief Agenda Setter, can involve in determining or deciding on priorities for legislation, this implies that, he has the authority to sign legislation into law or to veto bills enacted by Congress, even though, Congress also has the power to override a veto with a two-thirds vote of both houses.