In a recent debate on the effectiveness of renewable energy sources, Speaker A argued that investing in wind and solar energy is essential for combating climate change. They provided data showing a steady increase in efficiency and a decrease in costs for these technologies over the past decade. Speaker B countered that transitioning to renewable energy too quickly could disrupt the economy, particularly in regions dependent on fossil fuel industries. They emphasized the potential job losses and instability this shift could cause, suggesting that a more gradual transition is necessary.

Given these arguments, evaluate which speaker's reasoning better addresses the complexities of the issue at hand.