50.A contract can be avoided

a.based on a mistake of fact.

b.based on a mistake of judgment.

c.if acceptance is promptly revoked.

d.based on a mutual mistake of judgment.

35.The Landrum-Griffin Act of 1959

a.allows for the passage of state right-to-work laws.

b.limited the duration of any strike to six consecutive months without the consent of the NLRB.

c.made it illegal for a labor union to call for a strike against the manufacturer of defense products.

d.outlawed all secondary boycotts (including hot cargo agreements).