Answer:
b. ordinal
Step-by-step explanation:
Letter grade (A, B, C, D, F) are Ordinal in nature. This is because they are indicators that is used to describe and demonstrate the arrangement of collection,ordering of performance in a sequential manner, one after another.
Another fact which makes the level of measurement to be Ordinal is due to the fact that the array of the objects ( Letter grade (A, B, C, D, F) )also align in terms of magnitude.
