A

Divided attention reduces productivity during parallel tasks.

B

i

According to source 1. We can immediately see the difference between the time that participants identify colors with and without words.

ii

Selective attention allows one to focus on certain specific sensory information while ignoring other sensory input but transformation from divided attention from it costs additional time.

`Selective attention allows one to focus on certain specific sensory information while ignoring other sensory input but transformation from divided attention from it costs additional time. Such a time-consuming process reduce our productivity during conplex tasks.

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C

i

According to source 3, the percentage of correctly recalled answers after one week was lower after multitasking.

ii

It’s easy to see that the formation of long-term memory is interrupted because of the phone call. The poor performance in the delayed quiz was justified.

It's easy to see that the formation of long-term memory is interrupted because of the phone call. The poor performance in the delayed quiz was justified. In this case, we know that those kind of interruption reduces our productivity during memorizating contents.