Enter the taxpayer's gross income for each of the following independent situations. note: if an amount is zero, enter "0".taxpayer'sgross incomea. darrin received a salary of $50,000 in 2018 from his employer, green construction. $b. in july 2018, green gave darrin an all-expense-paid trip to las vegas (value of $3,000) for exceeding his sales quota. $c. megan received $10,000 from her employer to her pay medical expenses not covered by insurance. $d. the $15,000 is included because blake's wife had a nonforfeitable right to the payment. $e. clint collected $50,000 as the beneficiary of a group term life insurance policy when his wife died. the premiums on the policy were paid by his deceased wife's employer. $