to the ritht,还是 on the right

to the ritht,还是 on the right

B.
众所周知中国的交通车驶方向是在右边
如果用了to the right意思就是中国的交通在右边。不通
通常to the right是在指引方向的时候用的
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100%打包票不是A，我在国外学英文都已经12年了，再说这个句子本来就有问题
It is well known to us that in China traffic on the right.
It is well known to us that in China traffic to the right.
语病，应该是
It is well known to us that in China, the traffic is on the right.
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等等，如果是keeps的话，就是to the right,因为这算是指引方向的一种。keeps to the right的话意思就不一样了。
众所周知中国的交通车驶方向要往右靠。

B,绝对是B

B

B 更好一点把

选B
在左边/右边都用on
on the left/ right