Express 0.004562 in three decimal places.

Three decimal places means three digits after the point. In 0.004562, the first three are 0, 0, 4.

Look at the next digit, which is 5. When it is 5 or more, round the last kept digit up. So 0.004 becomes 0.005.

The answer is 0.005. The option 0.0046 has four decimal places, so it is not three.