l₅=w∣w is even length, and is not a palindrome
a) Definition of lâ‚…
A)lâ‚… is the set of all even-length palindromes
B)lâ‚… is the set of all even-length strings
C)lâ‚… is the set of all non-palindromes
D)lâ‚… is the set of all even-length non-palindromes