You Purchased 700 Shares of a Stock for $21 a Share

You purchased 700 shares of a stock for $21 a share. Today, the stock is selling for $16 a share. The initial margin was 70% and the maintenance margin is 30%. You had to pay ____ in cash to purchase the stock and must have at least ____ in equity today.

A) $10,290; $3,360
B) $7,840; $10,290
C) $7,840; $3,360
D) $3,360; $7,840
E) $4,410; $3,360