Answer:
Option B Are based on the market values of the outstanding securities.
Explanation:
The reason is that the cost of equity and debts are calculated using the market values which provides the yield or return. So to find the weighted average cost of capital, the company has to find weightings of each souce of finance (Percentage) and then it is multiplied with the cost of debt (If it is debt). So at the end we add up all the weightings of cost of finance source used and derive weighted average cost of capital. So the correct option is option B.