How to get value of all rows from a column in a DataTable?

Question

Hi,
I want to save all values of last name of this data table in list by linq

| ID | FirstName | LastName | Age | +----+-----------+----------+-----+ |  1 | Alice     | Wannabe  | 22  | |  2 | Bob       | Consumer | 27  | |  3 | Carol     | Detector | 25  |