work on one aspect at a time?

[Anonymous]

Could you tell me which one of the following to choose?

People with hope have some characteristics in common: they turn to friends for advice, they regard setbacks as challenges and not as failures, and they know how to break a big goal into smaller ones and work on one ( ) at a time.
a.?@aspect b. break c. day d. setback

[RonBee]

Could you tell me which one of the following to choose?

People with hope have some characteristics in common: they turn to friends for advice, they regard setbacks as challenges and not as failures, and they know how to break a big goal into smaller ones and work on one ( ) at a time.
a.?@aspect b. break c. day d. setback

If I would have to choose one of those options, I would choose aspect, but I think problem would be a better choice.

:)

[RonBee]

P.S. It should be they know how to break big goals into smaller ones .

:)