If str1 and str2 are both Strings, which of the following will correctly test to determine whether str1 is less than str2?(1) (str1 < str2)(2) (str1.equals(str2) < 0)(3) (str1.compareTo(str2) < 0)a. 2b. 3c. 1, 2, and 3 will all workd. 2 and 3