Which of the Following Is Correct

Multiple Choice

Which of the following is correct?

A) The value (in dollars) of a call option on £5,000 with a strike price of $10,000 is equal to the value (in dollars) of a put option on $10,000 with a strike price of £5,000 only when the spot exchange rate is $2 = £1.
B) The value (in dollars) of a call option on £5,000 with a strike price of $10,000 is equal to the value (in dollars) of a put option on $10,000 with a strike price of £5,000.