Conducting Marketing Experiments,the Independent Variable Often Involves Marketing Mix Elements

conducting marketing experiments,the independent variable often involves marketing mix elements such as product features or coupons,while dependent variables often include

A) elements of environmental forces that cannot be controlled.
B) changes in channels of distribution or pricing rather than product features or price.
C) elements of the marketing mix that cannot be manipulated.
D) the primary experimental hypothesis.
E) changes in purchases such as dollar or unit sales of individuals or organizations.