Annabelle purchased shares of Trinity Co. stock for $45 and the price has risen to $70. Annabelle would like to ensure that if the price of Trinity Co. sock falls below $62, her shares will be sold. Which of the following will accomplish her goal?

a. A stop-loss order at 62.

b. A fill-or-kill order at 65.

c. A limit order at 45.

d. A long order at 70.

Andre purchased shares of Latte, Co. for $48 using a margin account with a 50% initial margin rate and a 30% maintenance margin rate. At what price will Andre receive a margin call?

a. $14.40.

b. $24.00.

c. $34.29.

d. $68.57.