Members of Congress enjoy all of the following advantages of incumbency except
A. the ability to perform constituent service.
B. the ability to raise large sums of campaign contributions.
C. the ability to communicate regularly with constituents at taxpayer
expense.
D. the ability to draw congressional district boundaries to maximize
their electoral chances.
E. the ability to direct federal spending to their districts or states.

The exception to the advantages of incumbency Members of Congress enjoy is;

E. The ability to direct federal spending to their districts or states

Explanation:

A congressman or congresswoman is a representative of a congressional district that are have a tenure of two years in elected office

The tasks performed by the congress includes legislative bills introduction, introduction of resolutions, work as members of committees, put forward amendments to laws, and approve appointments made by the presidency

A congressman or congresswoman can perform service to their constituent, raise funds for their campaign, have regular communication with the constituency they represent, and take part in redistricting while the budget authority is the legal entity charged with handling the financial obligations of the government