The Current Exchange Rate Is £1

The current exchange rate is £1.00 = $2.00. Compute the correct balances in Bank A's correspondent account(s) with Bank B if a currency trader employed at Bank A buys £45,000 from a currency trader at Bank B for $90,000 using its correspondent relationship with Bank B.

A) Bank A's dollar-denominated account at B will fall by $90,000.
B) Bank B's dollar-denominated account at A will rise by $90,000.
C) Bank A's pound-denominated account at B will rise by £45,000.
D) Bank B's pound-denominated account at A will fall by £45,000.
E) All of the above are correct