Answer:
b. The unlevered beta will remain the same and the levered beta will decline.
Step-by-step explanation:
Unlevered beta excludes the effect of debt on the investment. It represents only the risk associated with equity of the company. Change in the debt to equity ratio will not effect the unlevered beta. Unlevered beta will remain same.
Unlevered beta includes the effect of debt on the investment. It represents the risk associated with equity and debt of the company. Change in the debt to equity ratio will change the unlevered beta. Unlevered beta will decline with the reduction in debt to equity ratio as risk associated with debt decreases.