Me i really need this answer

regarding the butcher's yield test, which of the following is true?

a. to derive the cost factor, calculate nfpp minus total trim value.
b. new fabricated cost divided by new fabricated weight = apc.
c. use market prices for fat, bone, and usable trim.
d. begin the procedure with the nfc.

Silverpoint is a. a technique using the blackish residue of impure carbon obtained by removing water from animal and vegetation substances. b. a technique involving the use of a metal point, and a thin silver wire, popular in the 14th and 15th centuries. c. a printmaking technique born from crayon manner that imitates the appearance of chalk lines. d. a technique used since the 16th century involving a stick filled with either colored or black graphite, a heated mixture of carbon and clay