A married couple with 2 children and 5 grandchildren has an estate valued at $4 million. They decide to use gifts as a means to transfer some of their wealth to their family now and lower the value of their estate.
If for a five-year period the couple gives the maximum tax-free gift to each of their children and grandchildren, the value of their estate would be reduced to:

A) $84,000. B) $420,000. C) $3,090,000. D) $3,916,000.