Final answer:
Revenue recognition would likely be delayed until Year Two if the company cannot make a reasonable estimation of the number of units that will be returned, due to the principle of revenue recognition certainty.
Step-by-step explanation:
The recording of the transaction as a sale would most likely be delayed until Year Two if the company cannot make a reasonable estimation of the number of units that will be returned. According to revenue recognition principles, a company can recognize revenue when it is reasonably certain that the revenue will be realized. If there is a high degree of uncertainty regarding product returns and the company cannot estimate this with a sufficient level of precision, it should delay recognition of the sale. Furthermore, recognizing revenue prematurely could lead to inflated sales figures and misrepresent the financial health of the company.