The messenger is detained.
The union benefit did from holding maryland is: d. the union capital was not surrounded by hostile territory.
maryland was a slavery land of african people in 1864 during american civil war.
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In a free market system, the incentives are related to the sovereignty of the consumer since companies or brands are free to seek strategies to encourage consumers to buy a product or a service, but it is the consumer who has the power to decide which product is best for them, then, the sales strategy is designed by the merchant but it is the client who decides when, how and why to abstain or not to buy a service or product.