May Has Experience Developing Applications Using XSLT 1

Multiple Choice

May has experience developing applications using XSLT 1.0, and would like to take advantage of some of the added features of XSLT 2.0 in developing a new application. She comes to you for help implementing some of these new features.
-May is working with regular expressions, and would like to write a function that splits the contents of the employees element into a sequence of strings at every occurrence of a white space character such as a blank space, tab, or newline character. You recommend she use the function _____.

A) tokenize(employees, '\s-')
B) tokenize(employees, '\x+')
C) tokenize(employees, '\s+')
D) tokenize(employees, '\x-')