Read the paragraph.
 Like so many of the Greek divinities, however, the
 refined conception of the Muses is somewhat marred
 by the acerbity with which they punished any effort on
 the part of mortals to rival them in their divine powers.
 An instance of this is seen in the case of Thamyris, a
 Thracian bard, who presumed to invite them to a trial of
 skill in music. Having vanquished him, they not only
 afflicted him with blindness, but deprived him also of
 the power of song.
 The author uses a word that means "harsh bitterness" in
 the text. Choose the word in the paragraph that best
 represents that idea.
 Odivine
 marred
 afflicted
 acerbity