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Prime costs Yes 36. The costs of direct materials are classified as: Conversion costs Manufacturing costs A) Yes Yes B) No Yes C) No No D) Yes Yes Yes No Yes 37. The cost of electricity for powering manufacturing machinery is classified as: Conversion costs Period costs A) Yes Yes B) Yes No C) No Yes D) No No 38. Wages paid to the factory warehouse foreman are considered: Direct Labor Period costs A) Yes Yes B) Yes No C) No Yes D) No No