Exercise 6. Data types - heights

Since there are a finite number of reported heights and technically the height can be considered ordinal, which of the following is true:

50 XP

It is more effective to consider heights to be numerical given the number of unique values we observe and the fact that if we keep collecting data even more will be observed.
It is actually preferable to consider heights ordinal since on a computer there are only a finite number of possibilities.
This is actually a categorical variable: tall, medium or short.
This is a numerical variable because numbers are used to represent it.