一位开发者想要设置button组件为椭圆按钮，以下在XML引用的背景图层中正确的是哪一项?

A、<?xm1version="1.o"encoding="utf-8"?><shapexmlns:ohos-http://schemas.huawei.com/res/ohos"Ohos:shape="oval"><cornersOhos:radius=100"></corners><solidOhos:color-"#007CFD"></solid></shape>
B、<?xmlversion="1.0"encoding-"utf-8"?><shapexmlns:ohos="http://schemas.huawei.com/res/ohos"Ohos:shape=rectangle"><solidOhos:color="#007CFD"></solia></shape>
C、<?xmlversion-"1.O"encoding="utf-8"?><shapexmlns:ohos=http://schemas.huawei.com/res/ohosOhos:shape="oval"><solidOhos:color="#007CFD"/></shape>
D、<?xmlversion-"1.0"encoding="utf-8"?><shapexmlns:ohos=http://schemas.huawei.com/res/ohos"Ohos:shape="rectangle"><cornersOhos:radius="100"</corners><solidOhos:color=007CFDD</solid></shape>