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The Alarm Code

APPSY-FR25EY

Daniel, president of his fraternity, is in charge of choosing a new alarm code for the frat house. He just finished a cognitive psychology course where he was introduced to George Miller's research. Daniel wants to choose a number his brothers will remember.

Which of the following numbers would be the best choice?

A

A string of twelve computer-generated random numbers.

B

Two groups of three digits and one group of four digits.

C

Thirteen important dates in American history.

D

Eleven digits, chosen randomly.

E

The birth dates of all fifteen brothers.