Required information [The following information applies to the questions displayed below.] Banele had a taxable estate of $15.5 million when they died this year. Calculate the amount of estate tax due (if any) under the following alternatives. (Refer to Exhibit 25-1 and Exhibit 25-2.) Note: Enter your answers in dollars and not in millions of dollars. a. Banele's prior taxable gifts consist of a taxable gift of $1 million in 2005. Estate tax due