The correct answer to this open question is the following.
The three brief explanation that describes the essential characteristics of the Apostolic Church are the following.
1.- One of the most important tenets is the Unity of God, the father in the trinity concept: the father, the son, and the holy spirit, in unity. Jesus represents the three of them.
2.- Apostolic people receive baptism but in the name of Jesus. Other Christian religions baptize in the name of the father, the son, and the holy spirit.
3.- Apostolic Followers are very strict with their conduct. They do not drink or smoke. Men are conservative and women wear long dresses and most of them do not use make-up.
Apostolic Pentecostals are the most strict followers of this religion.