Which excerpt from the passage suggests that the narrator experienced doubt about his strategy?
O A. I tried the scarecrow plan, in a way which I thought would
outwit the shrewdest bird.
OB. I knew that, if I put up a complete stuffed man... the
perfection of the thing would show him that it was a trick.
O C. I expected to outwit the bird by a duplicity that was
simplicity itself.
OD. I may have overcalculated the sagacity and reasoning power
of the bird.