Which of the following is true of contrary opinion as a technical analysis technique?

Which of the following is true of contrary opinion as a technical analysis technique?
A . Contrary opinion can be used as the sole decision source in entering into new trading positions
B . Contrarians trade against the consensus even when it is within a normal range
C . Contrary opinion is more useful in deciding when to exit positions than as a timing tool
D . Once all long positions have been set, there is diminishing influence by the bulls

Answer: D