Concept:Decimal multiplication can be simplified by converting decimals to powers of 10.Explanation:Write each decimal in scientific notation.0.002=2×10−3 and 0.5=5×10−1.Multiply the coefficients and add the exponents:0.002×0.5=(2×10−3)×(5×10−1)=(2×5)×10−3−1=10×10−4=101−4=10−310−3=0.001Answer:The simplified value is 0.001.Hence, the correct option is D.