Given a text T, and several options, according to the question posed in the text T to choose the most appropriate option from the options as the answer, please directly output the most appropriate option, do not need to output the explanation.

Which of the following statements regarding the calculation of the enterprise value multiple is most likely correct?
Option A:Operating income may be used instead of EBITDA.
Option B:EBITDA may not be used if company earnings are negative.
Option C:Book value of debt may be used instead of market value of debt.

Answer: A