User SCOTT has been granted CREATE ANY TRIGGER AND ALTER ANY TABLE by the DB

User SCOTT has been granted CREATE ANY TRIGGER AND ALTER ANY TABLE by the DBA.
HR is an existing schema in the database.
SCOTT creates the following trigger:
CREATE OR REPLACE TRIGGER drop_trigger
BEFORE DROP ON hr.SCHEMA
BEGIN
RAISE_APPLICATION_ERROR (-20000, ‘Cannot drop object’);
END:

SCOTT does not grant the execute privilege on this trigger to any other users.
For which user(s) would this trigger fire by default when they drop an object in the hr schema?

A.
Only HR

B.
SCOTT and HR

C.
Only SCOTT

D.
SCOTT, HR, and SYS

Explanation: