Dropdown error

hello there :) im using js

 public var dropbox : GameObject;
 function Start ()
 {
     
     dropbox = transform.Find("Dropdown").gameObject;
     Debug.Log(dropbox.GetComponent.<UI.Dropdown>().OptionData.text);
     
 }

Unity give me that error... what is wrong with "text"? its not my variable, its unity's.

Assets/scripts/apply_script.js(40,67): BCE0020: An instance of type 'UnityEngine.UI.Dropdown.OptionData' is required to access non static member 'text'.

thanks