During an experiment, a chemist observes a reaction where a single reactant 'R' breaks down into products 'P' and 'Q'. The reaction is first order with respect to 'R'. Halfway through the reaction, when 50% of 'R' has been converted into products, the chemist adds a catalyst that doubles the rate constant for the remaining reaction. Which of the following statements accurately describes the impact of adding the catalyst on the overall time taken for the reaction to reach completion compared to an uncatalyzed reaction? A. The overall reaction time will be reduced by 25%. B. The overall reaction time will be the same as the uncatalyzed reaction. C. The overall reaction time will be reduced by 50%. D. The overall reaction time cannot be determined with the given information.