CAREFUL READING
Read the following passages carefully. Decide on the best answer and choose the corresponding letter.
    Nowadays, if you want to get employed in a prospective company, you need to be outstanding in order to withstand competition. Employers often promote standards to their would-be workers, even if their duties include only photocopying or sharpening pencils. One of the qualities crucial for any employee is multitasking, and it has become almost a priority throughout the recent decade. However, although it is believed that a multitasking person can complete more work within the same amount of time compared to a "regular" worker, in fact multitasking is not only ineffective, but also harmful for those who try to spread their energy on working on several projects at once.
    Multitasking is not what everyone thinks it is—simultaneous (同时的) work in several different directions. In fact, multitasking should be called "task switching." Our brains are not capable of maintaining constant attention towards several objects at once. So, a person has to constantly switch from one activity to another, without getting themselves fully engaged in at least one of them.
    Multitasking being bad for work is just half of the problem; the second half of it lies in the fact that spreading your energy on several tasks at once is harmful not just to your productivity, but to yourself as well. Over-stimulation caused by your brain being constantly bombarded (轰击) by incoming external stimulation puts you at risk of becoming unable to distinguish what is important and what is not. Last year, a group of researchers from Stanford University figured out that multitasking participants were distracted the most by unimportant information stored in their short-term memory. Multitasking people also tend to forget their tasks' details, thus becoming less able to perform them well. Besides, multitasking leads to the increase of stress levels, burnout, employee absences, disability, and so on. Therefore, sometimes it can be useful for office workers to turn off notifications (通知) on their smartphones, and pay all their attention to one task at a time.
    Efficient multitasking is a myth brought to life by employers' desire to have fewer workers who would do more work in the same amounts of time. Research shows that multitasking does not lead to an increase of productivity; on the contrary, it brings about some negative effects on multitasking workers themselves. Therefore, employers and employees should stop deceiving themselves, and return to the good old way of working: one task at a time.