George,an Hourly Employee of Crystalline Candies,has Been Given a Union

George,an hourly employee of Crystalline Candies,has been given a union authorization card.He is considering whether he should sign it.George realizes that

A) if he signs the card, he is legally obligated to vote for the union if a certification election is held.
B) he can sign the card now as a protest against Crystalline Candies' management, and then vote against the union in the election.
C) if he does not sign the card, he will not be eligible to vote if a union certification election is held.
D) if 30 percent plus one of the employees in the election unit sign authorization cards, the union will be automatically certified.