Which of the Following Expressions Demonstrates the Correct Procedure for Multiplying

Which of the following expressions demonstrates the correct procedure for multiplying a fraction by a whole number?

A) $10 \times \frac{2}{5}=\frac{10}{1} \times \frac{2}{5}$
B) $10 \times \frac{2}{5}=\frac{1}{10} \times \frac{2}{5}$
C) $10 \times \frac{2}{5}=\frac{1}{10} \times \frac{4}{10}$
D) $10 \times \frac{2}{5}=10 \times 5 \times 2$