The correct answer is - 1.00.
The two closest tenths to the number 0.96 are 0.90, and 1.00.
Since the number is 6 unites away from the 0.90 tenth, and just 4 units away from the 1.00 tenth, it is obvious that the closer is 1.00 tenth, as it is 2 units closer to the given number than the other closest tenth.
Also, the principle of rounding is very simple. If the number ends with 5 or more, than it is circled on the higher tenth, and if the number ends with 4 or less, than it is circled at the lower tenth.
