On the balance sheet after adjusting entries are made, the amount shown for the allowance for doubtful accounts is equal to the total estimated uncollectible accounts as the end of the year. A doubtful account is a reduction of the total amount of acounts receivable appearing on a company's balance sheet and are listed as a deduction immediately below accounts receivable line item.
This could be a couple things, but I think it would be "telecommuting".
If the returns are constant to scale, the output increases by the same as the increase in inputs, therefore, it would double.
I saw on quizlet.com that the answer to this question is $199,000 and that number appears to be one of your choices. If I were you I would choice C.