财务报表分析官方教材上有道题：p473第九题

Cummins is analyzing the financial statement of a company that has issued convertible bonds that are currently reported as debt. Cummins is considering potential adjustments to the debt-to-equity ratios as part of her analysis. The least appropriate action would be to

A.make no adjustment     B adjust debt but not equity    C adjust equity but not debt

答案说选B。后面的解释怎么也看不懂。我一直想，既然公司目前将可转债作为债务处理，那么如果对debt-to-equity ratios 调整，必然是如果一个加了，另一个必然就要减掉相应的金额。怎么会出现只调整一个的情况，或者不调整的情况呢？

请各位高人帮小弟解释一下，多谢！！