Choose the closest paraphrased version after the following sentence or the italicized part.
It [sleepiness] filled my brain like a cloud. I was going, going... （ ）
A、
Due to sleepiness, I was not aware that I had lost my sense of direction.
B、
I was almost overcome by sleepiness and would doze off any moment.
C、
I was trying hard to beat back sleepiness so that I could keep moving.
D、
Sleepiness made me relaxed, as if I were walking under a cloud.
【正确答案】：B
【题目解析】：
句子释义：睡意像一朵云充满了我的大脑，我就要跟着这朵云飘走了…
B选项“我几乎昏昏欲睡，随时都会打瞌睡”符合句意。