If s1 and s2 are references to two strings then which of the following are the correct ways to find whether the contents of the two strings are equal? 1. if(s1 = s2) 2. if(s1 == s2) 3. int c; c = s1.CompareTo(s2); 4. if( strcmp(s1, s2) ) 5. if (s1 is s2)

If s1 and s2 are references to two strings then which of the following

1.	If s1 and s2 are references to two strings then which of the following are the correct ways to find whether the contents of the two strings are equal? 1. if(s1 = s2) 2. if(s1 == s2) 3. int c; c = s1.CompareTo(s2); 4. if( strcmp(s1, s2) ) 5. if (s1 is s2)
A.	1, 2
B.	2, 3
C.	4, 5
D.	3, 5
Answer» C. 4, 5