All of the ways listed below are always candidates can be nominated except

The correct answer here would be secret nomination.

When you are trying to be an official in any capacity your nomination must always be made public. This is after all a public position and you can self-announce your nomination, you can be nominated through a petition or through a direct public primary. All of these are valid options except a secret nomination.

All of the ways listed below are always candidates can be nominated except secret nomination. This cannot be made because it can cause to any biased and crime in which it will buy the vote of the person and can cause harm to others also.