Real rate expected cash flows and nominal rate expected cash flows must be

accelerated
equal
different
inflated

The correct answer is: C. different

Real rate expected cash flows are the expected cash flows after adjusting for inflation. Nominal rate expected cash flows are the expected cash flows before adjusting for inflation. Therefore, real rate expected cash flows and nominal rate expected cash flows must be different.

Option A is incorrect because real rate expected cash flows are not accelerated. They are simply the expected cash flows after adjusting for inflation.

Option B is incorrect because real rate expected cash flows are not equal to nominal rate expected cash flows. They are different because nominal rate expected cash flows are not adjusted for inflation.

Option D is incorrect because real rate expected cash flows are not inflated. They are simply the expected cash flows after adjusting for inflation.