Jack and Jill are married. This year Jack earned $72,000 and Jill earned $80,000 and they received $4,000 of interest income from a joint savings account. How much gross income would Jack report if he files married-separate from Jill?
a. $72,000 if they reside in a common law state
b. $76,000 if they reside in a community property law state
c. $78,000 if they reside in a community property law state
d. $84,000 if they reside in a common law state