Which regular expression properly accepts a hexadecimal integer including a possible sign with up to 8 digits and nothing else? O ^(+-]?[0-9a-f{1,8)$ O ^I+I-]?(\d[a-f]){1,8}$ O (+-]?[a-f0-9]{1,8} a...

Computing And Software Systems

Extracted text: Which regular expression properly accepts a hexadecimal integer including a possible sign with up to 8 digits and nothing else? O ^(+-]?[0-9a-f{1,8)$ O ^I+I-]?(\d[a-f]){1,8}$ O (+-]?[a-f0-9]{1,8} a and c None of the above