A water bottle company is trying to design a research plan on how to increase their sales. They think a causal research objective is the best way to do so$.$ Which of the following research objectives would fit this request?A$.$ None of the given optionsB. If we use darker coloured bottles, will our market share among men increase? C$.$ Who drinks the most water?D$.$ What color do people associate with refreshment?E$.$ What type of bottle cap do women prefer?