Respuesta :
C is correct
The painting, which was not an authentic work, was found in Picasso's sketchbook.
Authentic is correct used in this sentence .
The sentence that uses the italicized vocabulary word correctly is option C.
The painting, which was not an authentic work, was found in Picasso's sketchbook.
Authentic is an adjective that can be defined as:
not false or copied; genuine; real; having an origin supported by unquestionable evidence; authenticated; verified; representing one’s true nature or beliefs; true to oneself or to the person identified.
In this case the adjective authentic is modifying the noun work.