Which qualities are most desirable for a business's lead manager to possess?

I. Commitment to the business's mission.

II$.$ Focused and specific knowledge of law and accounting.

III. Sound planning ability and a willingness to involve others.

IV$.$ Effective leadership skills for the long term.

I, II$,$ III and IV$.$

I, III and IV only.

I, II and IV only.

II and III only.