Which ratio(s) should be used to help answer each of these questions?

(a) How efficient is the company in using its assets to produce sales?
(b) How near to sale is the inventory on hand?
(c) How profitable was the company relative to the amount invested by shareholders?
(d) How able is the company to pay interest charges as they come due?
(e) How able is the company to repay a short-term loan?