SAT Question a15b3219: Command Of Evidence answer and explanation

English - Command Of Evidence - Quantitative Data Evaluates Claim
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Municipalities’ Responses to Inquiries about Potential Incentives for Firm01002003004005006007008009001000110012001300no responseresponded to inquiryoffered incentiveNumber of municipalitiesannouncement before electionannouncement after election
In the United States, firms often seek incentives from municipal governments to expand to those municipalities. A team of political scientists hypothesized that municipalities are much more likely to respond to firms and offer incentives if expansions can be announced in time to benefit local elected officials than if they can’t. The team contacted officials in thousands of municipalities, inquiring about incentives for a firm looking to expand and indicating that the firm would announce its expansion on a date either just before or just after the next election.
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Difficulty:Hard
Which choice best describes data from the graph that weaken the team's hypothesis?