Lets take sequence 1111...... 24 times , 11111.......... 26times (here each element of s1 is less than or equal to s2)
reverse the sign of s1 then -1,-1,-1.,....... 24times . 11111.............26times
Statement 1 is false . because every member of s1 is greater than or equal to s2.
Statement 2 is false because max element 1 is not in s1.
Statement 3 is false beacause in given above example both s1 and s2 are having same signs but after inverting the sign of s1 . largest of s1 and s2 are not in s1 . so it is also false .
So correcct option is D