why does a company need a marketing plan? to determine financial success to encourage customer loyalty to be…

Brief Explanations:

A marketing plan helps a company define strategies to reach its target market, promote products or services, and achieve business goals, which contributes to being effective and successful. Determining financial success is more related to finance and accounting. Encouraging customer loyalty is one aspect but not the over - arching reason. Building warehouse mapping is an operational logistics task, not related to marketing.

Answer:

C. To be effective and successful