以下哪个代码片段可以正确实现指定的多优先级商品排序需求？

第29331题单选题

现有商品类Commodity定义如下：

class Commodity {
    int stock; // 库存数量
    double price; // 商品售价
    long shelfTime; // 上架时间戳，值越小代表上架越早
}

排序规则为：1. 优先按库存数量从高到低排序；2. 库存相同时，按商品售价从低到高排序；3. 前两项均相同时，按上架时间从早到晚排序。


Comparator<Commodity> cmp = (a, b) -> {
    if (a.price != b.price) return (int)(a.price - b.price);
    if (a.stock != b.stock) return b.stock - a.stock;
    return a.shelfTime - b.shelfTime;
};```


Comparator<Commodity> cmp = (a, b) -> {
    if (a.stock != b.stock) return b.stock - a.stock;
    if (a.price != b.price) return (int)(a.price - b.price);
    return a.shelfTime - b.shelfTime;
};```


Comparator<Commodity> cmp = (a, b) -> {
    if (a.shelfTime != b.shelfTime) return a.shelfTime - b.shelfTime;
    if (a.price != b.price) return (int)(a.price - b.price);
    return b.stock - a.stock;
};```


Comparator<Commodity> cmp = (a, b) -> {
    if (a.stock != b.stock) return a.stock - b.stock;
    if (a.price != b.price) return (int)(b.price - a.price);
    return b.shelfTime - a.shelfTime;
};```

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