Which of the Following Is True for the Term "Spot

Which of the following is true for the term "spot exchange rate"?

A) It refers to the technique of protecting against the potential losses that result from adverse changes in exchange rates.
B) It refers to the simultaneous and instantaneous purchase and sale of a currency for a profit.
C) It refers to the exchange rates that require immediate settlement with delivery of the traded currency.
D) It refers to the practice of buying and selling a currency with the expectation that the value will change and result in a profit.
E) It refers to the exchange rate between two currencies, neither of which is the official currency in the country in which the quote is provided.