The ________ stores the nominal values as a vector of integers in the range of 1 to unique values in the nominal variable.

The ________ stores the nominal values as a vector of integers in the

1.	The ________ stores the nominal values as a vector of integers in the range of 1 to unique values in the nominal variable.
A.	Factor
B.	Matrix
C.	Lists
D.	Functions
Answer» B. Matrix