We have to decide whether the we can find units digit of S^4 from -

Statement 1- If we take any 2 digit number which is not divisible by 5 and divisible by 2 it will be of the form x2 or x4 or x6 or x8.

In these cases S^4 will be 2^4 or 4^4 or 6^4 or 8^4. Please note that for all these cases we will have units digit as 6.

So statement 1 is sufficient.

From Statement 2 we can have values for units digit of S^4. One is the case we discussed in statement 1 and other will be for numbers of form x0 for which units digit of S^4 will be 0. Since two values are possible this statement is not sufficient.

Hence,A should be the correct choice.

Hope it helps!

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