问题
A study was carried out by Britain‘s NCC to__ 查看材料
A:find out how many claims made by products fail to meet environmental standards
B:inform. the consumers of the environmental impact of the products they buy
C:examine claims made by products against ISO standards
D:revise the guidelines set by the International Standards Organization
B:inform. the consumers of the environmental impact of the products they buy
C:examine claims made by products against ISO standards
D:revise the guidelines set by the International Standards Organization
正确答案是：
