Which of the Following Is True Regarding Nadine's Statement That

Which of the following is true regarding Nadine's statement that if employees would refuse to elect the union,she would give each employee a $1,000 bonus,but that she would grant no raises to union supporters?

A) She could not legally threaten employees who supported the union nor grant benefits to employees who opposed the union.
B) She could legally threaten employees who supported the union and she could legally grant benefits to employees who opposed the union.
C) Only so long as the amount at issue was no more than $1,000 per employee could she legally grant benefits to employees who opposed the union,but she could not legally retaliate against any employee for support of the union.
D) She could legally promise benefits to employees if they did not elect the union,but she could not threaten reprisals against employees who supported the union.
E) She could legally threaten reprisals against employees who supported the union,but she could not legally promise benefits to employees who did not support the union.