【单选题】One cowardly person came to a master of martial arts(武术)to learn bravery. The master looked at him and said: ' I will teach you only on one condition, if for one month you will live in a big city and ...
A.
To live with strangers for one month.
B.
To travel to a big city and talk to strangers.
C.
To tell strangers about his own weakness.
D.
To ask strangers for help with his problem.