通过下面的代码片段来回答问题。class People { var name: String var sex: Int var weight:Double var stature:Double init(name:String = "Tom", sex: Int, weight:Double = 72.1,stature: Double = 181.2){ self.name = name self.sex = sex self.weight = weight self.stature = stature }}下列对象的申明中，正确的是：
选项：

A: let Tom = People(name:"Tom");
B:let Tom = People(name:"Tom",sex:1);
C:let Tom = People(sex:0);
D:let Tom = People(name:"Tom",weight:181.2,stature:81.0)