Answer: E. Subsidy cut-offs can be determined on the basis of income for the preceding year.
Explanation:
Since Thomas counters Rita's point stating that during the initial part of the season, subsidies are needed. On the other hand, the income for the year will be calculated when the year ends.
To counter Thomas, it should be noted that Rita can say that subsidy cut-offs can be determined on the basis of income for the preceding year.