The Key Difference Between Defined Benefit and Defined Contributions Post-Employment

The key difference between defined benefit and defined contributions post-employment plans is that:

A) the employee bears the risk in a defined benefit plan, whereas the employer bears the risk in a defined contribution plan.
B) the employer bears the risk in a defined benefit plan, whereas the employee bears the risk in a defined contribution plan.
C) the fund bears the risk in a defined benefit plan, whereas the employee bears the risk in a defined contribution plan.
D) the employer bears the risk in a defined benefit plan, whereas the fund bears the risk in a defined contribution plan.