In the audiogram above, identify where masking is needed (ye…

In the audiogram above, identify where masking is needed (yes/no) for left AC and what the initial presentation level should be for plateau masking. Assume supra-aural earphones. If no masking is needed, write N/A. Right Frequency Masking needed?  Starting level 250 Hz    [BLANK-1]              [BLANK-2] 500 Hz    [BLANK-3]              [BLANK-4] 1000 Hz   [BLANK-5]              [BLANK-6] 2000 Hz   [BLANK-7]              [BLANK-8] 3000 Hz   [BLANK-9]              [BLANK-10]