Please answer the following quickly:

What is the cutoff (-3dB) frequency in this system? Magnitude 248 1 1 2 4 6 & 10 10 rades Select one: O a. 30 rad/s O b. 3030 rad/s O c. 130 rad/s O d. 330 rad/s The phase crossover frequency is determined when the phase of the system reaches: Select one: O a. +90 O b. +180 O C.-180 O d.-90