review the following scenario. use the information provided to answer questions about the taxpayer's 2021 return. chris (45) and allison (46) castillo are married, and they will file a joint return. during the year, they earned $82,500 in wages. they also had investment income consisting of: $200 interest income from a savings account with their local bank, reported on form 1099-int. $350 interest income from a certificate of deposit held with another local bank, reported on form 1099-int. $250 interest income from a u.s. treasury note, reported on form 1099-int. $500 tax-exempt interest income from a municipal bond investment, reported on form 1099-int. $1,700 in ordinary dividends from a mutual fund investment, reported on form 1099-div. They had no other income.