Joel and liza are having a disagreement over one of their stock investments, which just lost 15 percent in a short period of time. liza has a very high risk tolerance, but joel has a low risk tolerance. what would liza argue? a. buy more stock at the lower price b. hang onto the stock until the price climbs again c. sell half of the stock and invest in a more reliable company d. sell all of the stock before it loses more value