Figure 4-9 -Refer to Figure 4-9.The Graphs Show the Demand for Cigarettes.In

question 4

Multiple Choice

Figure 4-9

-Refer to Figure 4-9.The graphs show the demand for cigarettes.In Panel (a) ,the arrows are consistent with which of the following events?

• A)Tobacco and marijuana are complements,and the price of marijuana decreased.
• B)Tobacco is a "gateway drug," and the price of marijuana increased.
• C)The price of cigarettes increased.
• D)The arrows are consistent with all of these events.

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Definitions:

Serous Membrane

A thin layer of tissue that lines certain internal cavities of the body, producing serous fluid for lubrication.

Synovial Membrane

A type of connective tissue that lines the inner surface of synovial joints, producing synovial fluid for lubrication and nourishment of the joint.

Mucous Membrane

A layer of epithelial tissue that lines various cavities of the body and secretes mucus, which is protective and lubricating.