Apatent purchased for $50,000 was expected to have a useful life of 10 years and no residual value. The journal to record annual amortization, assuming the use of the straight line method, includes O a debit to Patent of $5.000 O a credit to Accumulated Amortization-Patent of $5.000 a debit to Accumulated Amortization--Patent of $5.000. O a credit to Patent of $5.000