Determine whether each of the following are considered taxable income.\ \ a.\ \ $10,000 payment for illegal services\ select an option\ b.\ \ $500 Chicago Blackhawks tickets received in exchange for maintenance performed on your friends car\ select an option\ c.\ \ $3,500 loan forgiven by a friend\ select an option\ d.\ \ $1,000 cash found in old purse purchased at a flea market\ select an option\ e.\ \ $100 found on the sidewalk\ select an option\ f.\ \ $200 received for dog sitting\ select an option\ g.\ \ $1,250 increase in the fair market value of stock owned at end of taxable year