Answer:
A. The variable Yr_Built is quantitative, with units years.
Explanation:
Since, Yr_Built means the year built, Also year has a numerical value like 2008, 2000, 1865, etc.
So, it is quantitative.
Further, Data is said to be quantitative if it has a numerical value.
Categorical data is that data which has categories. For example, Gender: It has two categories Female and Male.
The data which as ordering is called ordinal data. Example, Bad, Average, Good.
Identifier Variable is the variable that is used for identity. Example, Employee No., etc.