1. 8237. (1) An aircraft part may be demagnetized by sub jecting it to a magnetizing force from alternating current that is gradually reduced in strength. (2) An aircraft part may be demagnetized by subject ing it to a magnetizing force from direct current that is alternately reversed in direction and gradually reduced in strength. Regarding the above statements, A. both No. 1 and No. 2 are true B. only No. 1 is true. C. only No. 2 is true