For Cost of Living Allowances,the U.S.State Department Index

For cost of living allowances,the U.S.State Department index:

A) is suitable for all locations.
B) is adjusted frequently.
C) does not include many cities in which the firm operates.
D) accounts adequately for inflation and currency value changes.
E) companies are forbidden from taking surveys or use data from the United Nations,the World Bank,the International Monetary Fund.