Which one of these formulas is a correct computation of EBIT?

EBIT$=$EBT$\frac{-}{\text{I}}nt$ erest

EBIT$=$EBT$+$ Interest $+$ Depreciation

EBIT $=$ Gross profits $-$ Depreciation $-$ Other operating expenses

EBIT $=$ Sales $-$ Other operating expenses $-$ Depreciation