Dwight purchases a life insurance policy from Metropolitan Life Insurance Co., naming his spouse, Sarah, as primary beneficiary and his children as contingent beneficiaries. a. What are the estate tax consequences when Dwight dies and Sarah receives $500,000 from Metropolitan Life Insurance Co.? b. What are the estate tax consequences if Dwight purchases the policy and then transfers it to Sarah? Assume that Dwight paid all of the premiums even after the transfer and that Sarahs will leaves all of her property outright to Dwight. Dwight dies five years after the transfer to Sarah. c. Same as 1.b., except that Dwight reserved the right to borrow against the policy. He assigned all other rights to Sarah. d. Same as 1.b., except that Dwight must consent to any change of beneficiary.