Which of the following regular expressions represents a single upper-case letter?

Posted by: Pdfprep Category: 101-500 Tags: 101-500 exam questions, 101-500 practice exam, LPIC-1 Post Date: January 22, 2021

Which of the following regular expressions represents a single upper-case letter?
A . :UPPER:
B . [A-Z]
C . !a-z
D . %C
E . {AZ}

Answer: B