For united company, suppose that the cash indicated sales of 7000 $, but the amount of cash was only 6950 $. A cash shortfall of 50 $ exists. The cash shortfall entry is O a. Sales revenue 7000 cash over and short 50 cash 6950 O b. Cash 50 Cash over and short 6950 Sales revenue 7000 O c. Cash 6950 Cash over and short 50 Sales revenue 7000 O d. Cash 7000 Sales revenue 6950 Cash over and short 50