Answered

Which of the following is NOT a check that the Legislative Branch has over the Executive Branch?

Acan impeach the president
Bapproves presidential nominations
Cdeclare presidential acts unconstitutional
Dcontrols the budget

Verified Answer :

The Legislative Branch cannot "declare presidential acts unconstitutional," since this is one of the ways in which the judicial branch checks power, through the act of "judicial review".

MrZieleniewo

C. Declaring presidential acts unconstitutional is NOT a check that the Legislative Branch has over the Executive  Branch. 
The Judicial Branch is the branch of government that has power to declare a presidential act unconstitutional.  The Judicial Branch also exercises that check over against the Legislative Branch, having authority to declare a law passed by Congress as unconstitutional.
The other three items listed -- budget, approval of nominations, and impeachment -- all are powers the Legislative Branch can exercise as a check and balance on the Executive Branch.