Answer:
Letter D is correct. Bicycles are normal goods.
Explanation:
Normal goods are characterized as those that increase the quantity demanded from a scenario where there is an increase in income. Therefore, the relationship between consumption of a normal good and income is directly proportional, which means that the income elasticity of demand for normal goods will always be positive.
These goods are the majority of goods in the economy, some examples of normal goods are: clothes, perfumes, computers, vehicles, cell phones and others.