Health psychology approaches the two as having a relationship.
        
             
        
        
        
The correct answer is B "The price of chocolate has gone up and sales are down". Price sensitivity is the effect the price of a product causes in its demand towards consumers. It is also called price elasticity of demand. A simple example is when the price of a good goes up, its sales go down. It means the consumers are not willing to pay more for that product. This is the case of option B. The price of chocolate increased and made the sales decrease. 
 
        
             
        
        
        
Answer:
o the effects of the drought
Explanation:
The most serious problem affecting agriculture in Washington in the 1920s and 1930s is the drought condition because drought condition decrease the productivity of the crop. Water is the main material needed by the plants to absorb nutrients and transportation of materials inside the plant body so decrease occurs in the productivity of crops due to unavailability of water for the crops is the most serious problem for agriculture in Washington.