Write the decimal as a fraction with denominator 1000, then simplify.<br><br>
&bull; 0.075 = \( \frac{75}{1000} \)<br>
&bull; Divide numerator and denominator by 25.<br>
&bull; \( \frac{75 \div 25}{1000 \div 25} = \frac{3}{40} \)<br><br>
Final Answer: C: \( \frac{3}{40} \)