The appropriate risk-free rate to use when calculating the cost of equity for a firm is O a long-term Treasury rate. O a short-term Treasury rate. O an equal mix of short-term and long-term Treasury rates. O none of the above.

The appropriate risk-free rate to use when calculating the cost of equity for a firm is a long-term Treasury rate. a short-term Treasury rate. an equal mix of short-term and long-term Treasury rates. none of the above