YOU PASS AN EMPTY HOUSE AND SEE A NOTICE OUTSIDE IT WHICH READS

41. - 3500 CAU TRAC NGHIEM ON TAP AV THCS
3500 CAU TRAC NGHIEM ON TAP AV THCS

41. You pass an empty house and see a notice outside it which reads:

"..."

a. To sell

b. On sale

c. For sale

d. In sale

 c