\textbf{\hspace{0pt}If a business owner has a \textsuperscript{$}100,000 accounting profit and could have made exactly $60,000 in his next best business opportunity, he has earned} 
选项为:A:\textbf{$160,000 in economic profits.}  B:\textbf{$100,000 in economic profits.}  C:\textbf{$40,000 in economic profits.}  D:\textbf{neither an economic profit or loss.}  E:\textbf{none of the above.}  请回答其中一个选项.