How do I Instantiate a prefab on another game object's position (2D)

I need help as I am unable to spawn a prefab on my game objects position. Here is my code:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class Puzzle : MonoBehaviour
{
private List<GameObject> _listeTraps;

[SerializeField] private GameObject[] _tableauTraps;
[SerializeField] private GameObject[] _Spikes;
[SerializeField] private GameObject[] _Mines;
[SerializeField] private GameObject[] _Nothing;

// Start is called before the first frame update
void Start()
{
    _listeTraps = new List<GameObject[]>();
    _listeTraps.Add(_Spikes);
    _listeTraps.Add(_Mines);
    _listeTraps.Add(_Nothing);
    Init();
}

private void Init(){
    for(int i = 0; i < _tableauTraps.Length; i++)
    {
        
        int _aleatoireSorte = Random.Range(0, _listeTraps.Count); //pige un chiffre random
        GameObject[] n = _listeTraps[_aleatoireSorte]; //n = au chiffre piger
        int _aleatoireTrap = Random.Range(0, n.Length);
        _tableauTraps *= n[_aleatoireTrap];*

Instantiate(n[_aleatoireTrap]).transform.position = _tableauTraps*.transform.position;
// _listeTraps.RemoveAt(aleatoireSorte);
_
}*

}
}
And here are a couple of screenshots showing my unity editor:
[189887-189776-screenshot.png|189887]_
This is what actually happens when I spawn my prefab:
_
[189888-189779-capture2.png*|189888]*
_*
_*

What I wish to do is to randomly select one of my two prefabs, one being a spike and the other being a mine. They each have their own scripts, colliders, etc. I wish for them to be randomly selected by my element in _tableauTraps which will contain a list of multiple elements that will be spread throught my maze. I want my elements to choose from one of two traps and for those traps to be set at their position. I seem to be able to do everything but set their position where they are supposed to be. I thank each and everyone of you, for your help! :slight_smile: