Final answer:
Based on the increasing demand for nurses, it is unlikely that a high percentage of RN positions will be unfilled by the year 2020. Therefore, option c) 25% is the most reasonable choice.
Step-by-step explanation:
According to the Bureau of Labor Statistics, registered nursing jobs are expected to increase by 16% between 2014 and 2024. The BLS also forecasts that 439,000 new nurses will be in demand by 2022. Based on this information, it is unlikely that nurses can expect a high percentage of RN positions to be unfilled by the year 2020. Therefore, options a) 5% and b) 15% can be ruled out. On the other hand, options c) 25% and d) 35% seem even more unlikely given the increasing demand for nurses. While some positions may go unfilled due to various factors, it is unlikely that the percentage would be as high as 25% or 35%. Therefore, option c) 25% is the most reasonable choice from the given options.