Entrepreneurs often face various challenges when running their businesses.
Availability of skilled labours is generally a positive factor, not a barrier.
Self-confidence and risk-taking capability are traits that help entrepreneurs succeed.
However, unavailability of monetary resources on time is a major barrier as it affects cash flow, operations, and growth.
Lack of timely funding is one of the key reasons many ventures struggle or fail.
Thus, option (C) is correct.