A customer owns 200 shares of GHI common stock at $10 per share and 300 shares of GHI preferred Class A stock at par. If GHI declares a 2:1 split for its common shares, how will the customer's preferred Class A shares be adjusted?
A) 600 shares at $50 per share
B) 300 shares at $200 per share
C) 1,000 shares at $30 per share
D) No adjustment is made
Answer: D) No adjustment is made