Write the alphabetical arrangement of the third line in the IQ test of Harvard University.

Each line has rules relative to the next line:

The first one was changed to the second one.

The second one was changed to the fifth one.

The third was changed to the fourth.

The fourth one was changed to the first one.

The fifth was changed to the third.

So you got ECABD.

But I think there is more than one correct answer to this question, and a reasonable answer can be obtained by changing our thinking.

A moves 1 and 3 to the right respectively, so it moves 5 squares to the right from the third line to the fourth line.

B Move 3 and 3 to the right respectively, and then move 3 squares to the right from the third line to the fourth line.

C moves to the right by 1 and 2, respectively. Then, from the third line to the fourth line, it moves 3 squares to the right.

D moves 2 and 1 to the right respectively, so it moves 0 squares to the right from the third line to the fourth line.

E is shifted to the right by 3 and 1 respectively, so it is shifted to the right from the third row to the fourth row by-1 square.

Verify that the letter positions do not overlap, and the sequence is: BDECA.