dari gambar diatas kita tahu bahwa....

TC° = TY°

TC = 5/9 (TY - 32)
==> TC = 5/9 (TC - 32)
9TC = 5 (TC - 32 )
9TC = -160 + 5TC
9TC - 5TC = -160
4TC = -160
TC = -160/4
= -40°

jadi jawabannya (D)