Answer:
b. There can be no cash inflow or cash outflow without a corresponding change in a non-cash account.
Explanation:
There is only one cash account and no other account, if there is an inflow, there will be some non cash account related as for example, cash received from customers as is non cash account, accounts receivables.
Also in case of cash outflow, there will be some non cash account responsible for such transactions. As for example, payment for acquiring land, land is fixed asset which is a non cash account.
All other statements are incorrect.