Final answer:
The correct option is C. The attenuation of ultrasound propagating through soft tissue is approximately 0.5 dB/cm/MHz, which is valuable for setting safe and effective medical imaging parameters.
Step-by-step explanation:
The attenuation of ultrasound in soft tissue is an important parameter for medical diagnostics. This value represents how much the ultrasound signal weakens or loses intensity as it travels through the tissue.
The correct level of attenuation for ultrasound propagating through soft tissue is approximately 0.5 dB/cm/MHz, which corresponds to option C. Ultrasound attenuation is crucial in setting the correct intensity levels for safe and effective medical imaging and diagnostics.