An accelerometer has a seismic mass of 0.05 kg and spring constant of 3 x 10⁵ N/m. If maximum displacement of mass is ± 1 mm, the maximum acceleration which can be measured is

• A. 30 m/s²
• B. 60 m/s²
• C. 90 m/s²
• D. 120 m/s²