is this the only wey--the station

Is this the only way ____ the station?
选A. leading to
which leads to 中,问题在于关系代词which.因为先行词way有only修饰,不可以用which,能用that.
即：
Is this the only way that leads to the station?
that 在从句中作主语,省略之后,句子就变成：
Is this the only way leading to the station? （其中,leading是现在分词,作定语）
【语法贴士】
限定性定语从句中,如果先行词被the only, the very, the same, the last 等修饰,关系代词用that,不能用which.