What is the correct entry ?

On January 1, Skills Company purchased as a short-ten'n investment a $1,000, 6% bond for $1,000. The bond pays interest on January 1, The bond is sold on July 1 for $1,200 plus accrued interest. lnte rest has not been accrued since the test interest payment date. What is the entry to record the cash proceeds at the time the bond is sold? a. Cash 1,200 Debt Investments 1,200 b. Cash 1,230 Debt Investments 1,000 Gain on Sale of Debt Investments ................................ 200 Interest Revenue 30 c. Cash ....................................................................................... 1,230 Debt Investments 1,200 Interest Revenue 30 d. Cash ....................................................................................... 1,200 Debt Investments 1,000 Gain on Sale of Debt investments ................................ 200