Final answer:
In a decision strategy, a Filter component is used to remove propositions based on the current month by setting conditions to only allow those that fall within a specific date range.
Step-by-step explanation:
When using a decision strategy to remove propositions based on the current month, you typically use a Filter component. The Filter component allows you to set conditions that propositions must meet to be considered valid options. For example, you could configure the Filter component to only allow propositions that fall within a specific date range, effectively omitting ones that don't align with the current month.