Q8. The pair of diagrams below shows the effect of an increase in the demand for goodX, and its effect on the demand for, and price of goodY. Which of the following pairs is most likely to be represented by goodX and goodY? Good X D1 S Do S Good Do S D1 D1 Do Do S D₁ Good Y A. Petrol and diesel B. Word-processors and typewriters C. Tomatoes and apples D. Electrical appliances and electricity Good Y ​