This problem asks us to evaluate the feasibility of each vote share increase between 2000 and 2010. Vote share increases are usually reported in whole numbers or simple decimal values, and fractional values like 2.5% are less common in practice. Let's break down the solution step-by-step.
1. Review the Vote Share Trends:
Vote share shifts typically occur in whole numbers or simple decimal values. A fractional value like 2.5% is unlikely because political analysts generally round values to the nearest whole number or simple decimal. Hence, a 2.5% increase in vote share is statistically rare. Therefore, Option (B) is not likely to be a valid answer.
2. Evaluate the Feasibility of Other Options:
- Option (A) 2.0%: A 2.0% increase in vote share is entirely feasible. It is common to see moderate changes in voter support in the range of 2%, especially in small or regional elections.
- Option (C) 3.5%: A 3.5% increase is also plausible. This is a reasonable range for changes in voter support and could occur in larger-scale elections or national shifts.
- Option (D) 4.5%: A 4.5% increase is feasible and typical in political campaigns, especially when a party gains significant support due to events like elections or major political movements.
- Option (E) 7.5%: A 7.5% increase in vote share is on the higher end but still possible, especially after major shifts in voter sentiment or public policy changes.
3. Conclusion:
After reviewing the possibilities, 2.5% stands out as the most unlikely value because vote share changes are typically presented in whole numbers or simple decimal increments (e.g., 2.0%, 3.0%, etc.). Therefore, Option (B) 2.5% is the correct answer.
Thus, the correct answer is (B) 2.5%.