Read this excerpt from "The Story of Daedalus and Icarus" by Ovid:
Eventually, however, Daedalus lost the favor of the king and was
locked in a tower on the island of Crete. His exile was long, and
thoughts of escape were thwarted by the knowledge that King
Minos had guards on both land and sea.
What does the word thwarted mean in the sentence?
A. Allowed
B. Questioned
C. Defeated
D. Encouraged