Answer:
The correct answer is A: inaugurated.
Explanation:
When one person gets elected as the president of some state, he/she must be inaugurated.
Baptized means become a part of some Church by christening.
e.g. Jake had been baptized a Catholic.
Discharged means relieved of a charge or released from an obligation.
e.g. Lisa was discharged from her responsibilities in the company because of taking bribe.
Established means accepted and recognized by a group of people.
e.g. She established a reputation as a strict teacher.
Annulled means declared as invalid, without legal existence.
e.g. The elections were annulled by the government.
