According to ASCE 7-16 Section 11.4.6 and the provided diagram, for a period T such that T0 <= T <= Ts, what is the design spectral response acceleration Sa?

• (Sd1 * Tl) / T^2
• Sd1 / T
• Sds [0.4 + 0.6 (T / T0)]
• Sds