The principle of revenue recognition occurs when the revenue is recognized or earned whether cash is obtained or not and it also meets the accounting accrual basis. Realizable here implies that the customer receives the product but the payment was made afterward.
Since the given scenario reflects the violation of the revenue recognition principle.
Credibility can be defined as the quality of being trusted and believed in.
The audience have been able to perceive the competence, trustworthiness and the dynamism of the speaker, and these are the criteria to judge credibility.