Please choose the correct answer to fill in the blank according to the picture.
Tā tài lèi le, tǎng zài _____ shàng jiù shuìzháo le.
他 太 累 了，躺 在 _____ 上 就 睡着 了。
He was tired and fell asleep on the sofa.
A. 沙发(shāfā)
B. 桌子(zhuōzi)
C. 床(chuáng)