Right answer is (b) By converting the signal from the sensor to a Simulink Signal
The explanation: The signal from the current sensor is treated as a physical sensor to account for the noise, temperature changes in the environment of the circuit. Now, since this is a physical signal- we actually need to convert it to a signal which is compatible with the Simulink environment and this is done by a converter which converts a physical signal to a Simulink signal. Henceforth, we can connect the output of the converter to our scope and watch the output swing.