If, in the Previous Question, the Correlation Had Been -1

Multiple Choice

If, in the previous question, the correlation had been -1.0, what would happen after the students are asked to line up by weight?

A) About half of the students will move; others will stay in place.
B) Only the 13th student will stay in place; everyone else will move to the same position but in the opposite end of the line.
C) Everyone will have to move, but in no discernible pattern.
D) No one will have to move.