Fill in the words from the drop$-$down list that best complete the following passages.

After marketers select a

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$,$ they direct their company$$s activities toward marketing strategies built around four variables, often referred to as the

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$.$

The variable of

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may involve decisions about customer service, package design, brand names, and trademarks, patents, and warranties. The variable of

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may include decisions involving modes of transportation, warehousing, inventory control, order processing, and selection of marketing channels. The variable of

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is broadly defined as communications to a firm$$s buyers about their products