The correct option is A Smuggler
A smuggler is a person who smuggles goods, that is, takes goods and persons in or out of country illegally. For example, "drug smugglers". Hence, Option C is correct. Among the rest of the options, exporter means a person, country, or company that sends goods or services to another country for sale, importer means a person or organization that brings goods or services into a country from abroad for sale, imposter means a person who pretends to be someone else in order to deceive others, especially for fraudulent gain. These do not express the intended meaning, hence incorrect.