Select one or more: a. The company had problems collecting accounts receivable in 2019, if their goal is 30 days O b. Overall cash flow seems healthy in 2019 Oc. Profit margin and gross profit margin both decreased from 2018 to 2019 Od. The company did not pay dividends in 2019 O e. Of. g. In 2019, the company is spending less on "other operating expenses" per dollar of sales than it did in 2018 Oh. It took longer to sell inventory in 2019 than it did in 2018. It took 45 days in 2018. The company is relying primarily on the sale of long-term assets to fund its operations in 2019 The company's long-term solvency was worse in 2019 than it was in 2018