Which of the following is true of a break point on a firm's marginal cost of capital $($MCC$)$ schedule?

a$.$

A break point denotes the cost of obtaining an additional dollar of new capital that is required to meet the firm's capital budgeting needs.

b$.$

At the break point, the marginal cost of raising new capital equals the marginal revenues generated from investing the new capital.

c$.$

A break point $($BP$)$ is defined as the weighted average cost of capital $($WACC$)$ of the last dollar of new capital that a firm raises.

d$.$

A break point $($BP$)$ is defined as the last dollar of new total capital that can be raised before an increase in the firm's weighted average cost of capital $($WACC$)$ occurs.

e$.$

A break point shows the point at which the yield to maturity $($YTM$)$ on debt is equal to the firm's required rate of return.