For which of the following, the length of the string is not equal to the length of the longest palindromic subsequence?

For which of the following, the length of the string is not equal to the length of the longest palindromic subsequence? Correct Answer Some strings of length two

A string of length 2 for eg: ab is not a palindrome.

Related Questions

Which of the following methods can be used to solve the longest palindromic subsequence problem?
Longest palindromic subsequence is an example of ______________