All of the following are illegal characters in a file name EXCEPT ________

The ___________ function allows characters of one part of a string to be copied into another, overlapping part of the same string.

a. memchr b. memcmp c. memcpy d. memmove

A class may have ________ default constructor(s) and ________ destructor(s).

A) only one, only one B) only one, more than one C) more than one, only one D) more than one, more than one E) no, only one