Answer:
The answers are,
For A. It's the revenue recognition principle in which revenue is recognised when it is earned, now when the cash is realized.
For B. Its the matching concept in which all expenses related with earnings are debited against it to find the profit or loss.
For C. It's full disclosure principle in which all events in material nature has to be disclosed. We can say that going concern effects this as well, as if any event affect the continuity of an entity, it has to be disclosed as well.
For D. It's the historical cost principle in which you account the assets and expenses at the price you paid for them. When the value increases over time, you can reevaluate and adjust it.
Explanation: