The range of sound levels produced when Weld Shop personnel use the thermal sprayer (metal spraying operations) is 88-130 dBA. What does the IH use to determine the appropriate control(s) to protect worker's hearing? A. The IH would base noise control decisions on the manning levels of the Weld Shop B. The IH would base noise control decisions on the highest (worse case) sound pressure level C. The IH would base noise control decisions on the age of personnel performing the operations D. The IH would base noise control decisions on how often the job is conducted