Which of the Following Is the Most Likely Result If

Which of the following is the most likely result if Rex proceeds with attempting to obtain and enforce a lien?

A) Rex will lose because he performed deficient work.
B) Rex will lose unless he already paid Good Windows for the windows, in which case he would win.
C) Rex will win unless Selina has a writing signed by him in which he agrees that he will not seek a lien in the case of deficient work.
D) Rex will win if he proves that he had never had a problem installing windows before.
E) Rex will receive only half of his bill because he performed deficient work.