The slope of Bode gain plot of transfer function \(\frac{{ks}}{{\left( {s + 1} \right)\left( {s + 10} \right)}}\) between ω = 1 and ω = 10 is:

• A. -20 dB/decade
• B. zero
• C. -40 dB/decade
• D. +20 dB/decade