Technician A says that a dry chemical fire extinguisher can be used on class A, B and C fires. Technician B says that the chemical used in these fire extinguishers can be corrosive. Which technician is correct?

A) Technician A only
B) Technician B only
C) Both technicians
D) Neither technician


C) Both technicians

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Fill in the blank(s) with correct word

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A. Movement B. Mechanical strain C. Temperature D. All of the above

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