Which of the Following Statements About Strategic Planning Is True

Which of the following statements about strategic planning is true?

A) Strategic planning is clearly a top management responsibility and does not require the active participation of marketing managers.
B) Planning done in functional areas of the organization should be independent of the strategic plan.
C) There is no direct relationship between strategic planning and the planning done by managers at all levels.
D) Marketing executives are involved in the strategic planning process as they influence the process by providing important inputs.