In a leveraged buyout, investors borrow huge sums of money to buy companies, hoping to pay off
the debt by using
the company’s earnings and to profit
richly by the later resale of the companies or their divisions.
(A) by using the company’s earnings and to profit - IMO A
(B) by using the companies’ earnings and by profiting - Parallelism fails to pay off ... to profit.
(C) using the companies’ earnings and profiting - requires the much needed 'by' and fails parallelism.
(D) with the company’s earnings, profiting - Profiting is not parallel.Also the verb needs to be separated by an 'and'.
(E) with the companies’ earnings and to profit - Pay off debt by seems better.
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