When accounting for income taxes, a temporary difference occurs in which of the following scenarios?
a) An item is included in the calculation of net income, but is neither taxable nor deductible.
b) An item is included in the calculation of net income in one year and in taxable income in a different year.
c) An item is no longer taxable due to a change in the tax law.
d) The accrual method of accounting is used.