A text file contains only text and numbers without any formulas, special fonts, graphics, or formatted text.?
?

A(n) digital certificate is issued by a certificate authority that essentially vouches for the certificate holder's identity.

Answer the following statement true (T) or false (F)

The identifiers in an enumeration ________.

a. must be unique. b. may be duplicated. c. must be lowercase letters and cannot contain numbers. d. must be uppercase letters and cannot contain numbers.