<img src="https://file.gaojiufeng.cn/learnAppQuestion/29/08/2908eac831b9112ba842cd5d8310caf4.jpg" style="width: 100%;height: auto;"> A.<img src="https://file.gaojiufeng.cn/learnAppQuestion/e0/79/e079538b75cd7e50be58ac7125077948.jpg" style="width: 100%;height: auto;"> B.<img src="https://file.gaojiufeng.cn/learnAppQuestion/0c/b3/0cb33a2c34fc03660ab2f1fa5b83dec1.jpg" style="width: 100%;height: auto;">