State the type of scale used to measure the following sets of data.
A. Sales in euros.
B. The investment style of mutual funds.
C. An analyst's rating of a stock as underweight, market weight, or overweight, referring to the analyst's suggested weighting of the stock in a portfolio.
D. A measure of the risk of portfolios on a scale of whole numbers from 1 (very conservative) to 5 (very risky) where the difference between 1 and 2 represents the same increment in risk as the difference between 4 and 5?