Which of the following statements is incorrect?

Of the three levels of planning, corporate strategy is the broadest.

Business$-$unit strategy should be consistent with the corporate strategy.

Marketing stmategy should be consistent with both the busines$-$unit and corporate strategies.

Strategic planning begins at the marketing level and proceeds through business$-$unit and corporate levels.

Strategic planning begins at the corporate level and proceeds through business$-$unit and marketing levels.