SAT Central Ideas and Details Question

Online surveys are a common tool researchers use to collect information. These surveys are usually designed for use on personal computers (PCs), but more people are using smartphones to complete them than they are PCs. This shift in device usage may change how participants interact with online surveys. When researchers Jean Philippe Décieux and Philipp E. Sischka investigated, they found that PC users were more likely to multitask while taking surveys than smartphone users were, but PC users were also more likely to complete the surveys. Which choice best states the main idea of the text?