Which is not the best place to exchange currency?

el banco
el aeropuerto
el hotel
el mercado

It's not the best place to exchange currency:

Explanation:

The translation of the answer is:

When a person searches for a place to exchange currencies, either to buy a product in that country since he is a foreigner or to obtain currencies from a country to which he will travel, he regularly looks for one of two things:

All this because the person wants to be sure that their money will not be stolen once they have changed it, so the market is the worst place to carry out this type of transaction: security is minimal (if there is one ) and there are people walking everywhere so that someone sees all the money we have is almost impossible to avoid.

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