The author states that "On the average, people can keep about seven ideas in their minds at once" (paragraph 3) to explain that A. people can learn to keep more than seven ideas in their mind

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The author states that "On the average, people can keep about seven ideas in their minds at once" (paragraph 3) to explain that

people can learn to keep more than seven ideas in their minds with practice

most decisions involve seven steps.

human mental capacity has limitations.

some people have difficulty making minor as well as major decisions.

Giải thích

Tác giả nói rằng "Trung bình, mọi người có thể giữ khoảng bảy ý tưởng trong tâm trí của họ cùng một lúc" (đoạn 3) để giải thích rằng khả năng trí tuệ của con người có giới hạn.