Critical Reasoning

A young man eager to become a master swordsman journeyed to the home of the greatest teacher of swordsmanship in the kingdom. He asked the teacher, "How quickly can you teach me to be a master swordsman?" The old teacher replied, "It will take ten years." Unsatisfied, the young man asked, "What if I am willing to work night and day, every day of the year?" the teacher replied, "In that case, it will take twenty years."
The teacher's main point is that an important quality of a master swordsman is
(A) humility
(B) willingness to work hard
(C) respect for one's elders
(D) patience
(E) determination

OA D why not B.

I am not sure this is GMAT kind Q but my pick is D
since the man answer how QUICKLY u can teach me he says 10 years which is so long, with more hard working it takes more rather than take less time ==> patience is the key to become a master

not D because he is already willing to work hard...... Then it should take less than 10 and not 20..

@ cans
willing to work hard does not mean that he has patience.. on the other hand, if willing to work hard is the answer, determination to work hard also can be tempting... then i think B and E can not be the correct ones..

I am sure cans typed in D for B.

Its D certainly. Wish such questions appeared on the exam

It's D.

D. the swordsman is already eager to work hard.

Yeah I meant to say it can't be B..