Candidates who want to run for the senate must be at least 25 years old 35 years old 30 years old 40 years old

Candidates who want to run for the Senate must be at least 30 years old. Option C is correct.

Furthermore, a candidate who wants to run for Senate also must:

Be a U.S. citizen for at least 9 years prior to running 

Live in the state that they are running for 

Have these skills: Legal, business, or teaching experience; exceptional organizational, leadership, and also communication skills.

The qualifications to become a U.S. senator are stated in the U.S. constitiution; article one, section three and clause three.

the award is named for an american naval historian and theorist, rear admiral alfred thayer mahan, united states navy who, through his writing, provided stimulus and guidance to those who share in the defense of the nation.