A word spelling drag and drop game

I´m creating (my first game) a word spelling game where the player drags 3D letters around to shape words to trigger events.

The only way I can think of doing this is by tagging and hard coding every word and letter. I have a collider for each letter and trigger destination that calls the ABCLetters script attached to theWordBoard.

It has to be many better ways of declaring when a specific word is spelled with the letters dragged into place. I´m thankful for any help. Below are my attempt.

The first word to type, ABC

using UnityEngine;

public class ABCLetters : MonoBehaviour {

public bool Option1 = false;
public bool Option2 = false;
public bool Option3 = false;

void Update()
{

    if (Option1 == true && Option2 == true && Option3 == true)
    {
        Debug.Log("You did it!");

    }

      else if (Option1 == false && Option2 == false && Option3 == false)
      {
          Debug.Log("Try Again!");
       }
}

}

Then for each letter I have made this script:

using UnityEngine;

public class LetterA : MonoBehaviour {

public GameObject theWordBoard;

void OnTriggerEnter(Collider other)
{
    if (other.gameObject.tag == "A")
    {
        Debug.Log("A");
        theWordBoard.GetComponent<ABCLetters> (). Option1 = true;
    }
}

}