81. Which of the following most logically completes the argument?
The attribution of the choral work Lacrimae to the composer Pescard (1400–1474) has been regarded as
tentative, since it was based on a single treatise from....
(A) the treatise from the early 1500s misidentifis the composers of some of the musical works it considers
(B) the author of the treatise from the early 1500s had no very strong evidence on which to base the
identifiation of Pescard as the composer of Lacrimae
(C) there are works that can conclusively be attributed to Pescard that are not even mentioned in the treatise
from the early 1500s
(D) the later treatises probably had no source for their attribution other than the earlier treatise
(E) no known treatises from the 1600s identify Pescard as the composer of Lacrimae