What was the reaction of the counter-protesters regarding the state's income tax during the sales tax protest?

The reaction of the counter-protesters regarding the state's income tax during the sales tax protest is indicated as "probably true." This choice suggests that while there may not be definitive evidence or statements made, there is a reasonable assumption based on the context that the counter-protesters likely expressed concerns or opposition related to the state's income tax in conjunction with the sales tax protest.

In many cases, counter-protesters at events like tax protests have motivations rooted in broader economic concerns or specific ideologies about taxation. Given the context of a sales tax protest, it is plausible that counter-protesters would articulate a perspective that aligns with their views, possibly critiquing or defending the income tax system in relation to the sales tax issue at hand. This interpretation takes into account common sentiments surrounding tax policies, where discussions about different forms of taxation often occur simultaneously.

The other choices imply a more definitive stance (true or false) or indicate a lack of sufficient data, which do not fully capture the nuanced and often ambiguous reactions of groups involved in protest movements. The wording "probably true" allows for some flexibility, reflecting the complexity of public opinion without asserting absolute certainty.