Which is a method to reduce noise?

Comprehensive and Detailed Explanation From Exact Extract:

Persistence averages multiple frames to smooth out random noise fluctuations, reducing the appearance of noise in the image and improving image quality.

According to sonography instrumentation reference:

“Persistence reduces noise by averaging data from consecutive frames, improving signal-to-noise ratio and producing a smoother image.”

Therefore, the correct answer is D: Increase persistence.

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