please help with this Question

For each question, select the correct answer from the dropdown box. (a) Suppose that when the income of a consumer increases from $5000 to $6000, the demand for Good C increases from 55 units to 70 units. Using the midpoint formula, the income elasticity of demand for Good C is [ Select ] (b) Of the following. which is the best example of what Good C could be? V [ Select ] Medicine Designer clothing Public transport