Scaling up a business requires a firm to take care of which of the following? (A) Hiring, retaining and…

(A), (B), (C) and (D) only are needed. To scale up, a firm must build and keep a capable team, raise growth capital from investors whose goals match its own, manage time and delegate work as the organisation grows, and expand only when the market is large enough and the timing is right. Experiencing the business idea is a stage of the creative process at the very start of a venture, not a requirement of scaling, so any set containing it is wrong.