I believe that these are the choices for the question:
A.) Introducing new legislative ideas to the president's cabinet
B.) Revealing a newly proposed policy to the legislature
C.) Leaking information about a potential policy to gauge public support
D.) Revealing truths about a candidate's sexual orientation
E.) Appealing to the citizenry to support a policy
Among these, the president is said to be "going public" when he/she appeals to the citizenry to support a policy. By "going public", the president seeks out the support of the citizens directly.