Unions May Obtain Legal Recognition or Bargaining Rights by

Unions may obtain legal recognition or bargaining rights by

A) persuading,at the workplace during working hours,employees to join the union
B) automatic certification by a labour relations board when less than 10 per cent of employees sign cards
C) automatic certification due to employer unfair labour practice(s)
D) certification by workers' compensation board when more than 60 per cent of employees sign union cards
E) threatening an illegal strike