a. Debit Cash, $9,000; credit Long-Term Investments, $9,000.
b. Debt Long-Term Investment, $9,000; credit Cash, $9000.
c. Debit Cash, $9,000; credit Interest Revenue, $9,000.
d. Debit Unrealized Gain-Equity, $9,000; credit Cash, $9,000.
e. Debit Cash, $9,000; credit Unrealized Gain-Equity, $9,000