For each of the following independent cases, indicate the amount of gross income that must be included on the taxpayer's 2016 income tax return.
a. Malchia won a $4,000 humanitarian award.
$___________________
b. Rob won a new automobile (with a sticker price of $15,700 and a market value of $14,500) for being the best junior tennis player in 2016.
$___________________
c. George received a $3,500 tuition and fees scholarship to attend Western University.
$___________________