Company XYZ has two recognized labor unions, one for its rank-and-file employees (RFLU), and one for supervisory employees (SELU). Of late, the company instituted a restructuring program by virtue of which A, a rank-and-file employee and officer of RFLU, was promoted to a supervisory position along with four (4) other colleagues, also active union members and/or officers. Labor Union KMJ, a rival labor union seeking recognition as the rank-and-file bargaining agent, filed a petition for the cancellation of the registration of RFLU on the ground that A and her colleagues have remained to be members of RFLU. Is the petition meritorious? Explain. (3%)