直接说题目、：
Obesity now 【accounts for 】nearly $40 billion of the total treatment cost for heart disease ,diabetes ,high blood pressure, gallbladder ailments, and breast and colon cancer .the underlined part means _______.
选项：
A。 constitutes the primary factor for
B. provide a legal explanation
C . support the idea of
D. give a justified ex planation
② The political _________in the country constituted a direct threat to its social and economic stability.
A.integration
B disintegration
C integrated
D disintegrated
哥哥姐姐 速度啊