Rank the clients in terms of their anticipated risk tolerance from highest to lowest.

Client A - high income, security of employment.
Client B - self-employed entrepreneur, high income.
Client C - entry-level worker, small asset base, secure employment.
Client D - married, 3 dependents, large mortgage.

A. I, III, II, IV.
B. IV, II, III, I.
C. II, I, IV, III.
D. I, II, III, IV