Answer:
Option 2 and 3 are correct
Explanation:
Foreign exchange refers to the conversion of one currency in exchange for another currency.
Foreign exchange market refers to a market for buying and selling of foreign currency in exchange of home currency. Such form of market has various participants such as forex dealers, brokers, institutions and individuals.
Foreign exchange market has no geographical location, rather it is spread online through network of banks, forex institutions and brokers.
International tourists require the currency of the nation they tour and thus they exchange their own currency in return for it. The process is foreign exchange.