Which of the Following Is Correct Regarding Benefits and the Collective

Which of the following is correct regarding benefits and the collective agreement:

A) Benefits that employees will be entitled to must be set out specifically in the collective agreement.
B) The employer will always establish a flexible benefit plan that allows employees to individually negotiate their benefit costs.
C) The employer must arrange insurance coverage to provide for benefits set out in the collective agreement.
D) The benefits employees are entitled to could be provided for outside of the collective agreement.
E) Legislation sets out all the benefits that must be provided for in collective agreements.