问题如下：
According to Exhibits 1–3, compared with Company Y, Company X has a lower:
选项：
A.free cash flow after dividends/debt ratio.
B.debt/capital ratio.
C.EBITDA/interest expense ratio.
解释：
C is correct.
As shown in the following table, we can know that compared with Company Y, Company X has a lower ratio of EBITDA/interest expense.
想问一下答案中capital的数字是怎么得出来的？具体指working capital与fixed capital之和吗？
