听力原文： Economic experts now estimate that the Indonesian forest fires which have been blazing intimately for nearly a year could cost the region up to six billion dollars. Some, include direct losses, such as agricultural output and indirect costs like medical bills and a drop in tourism. Figures were arrived at by the world-wide Fund for Nature and Research Group funded by Western governments, the economy and the environment program for Southeast Asia.
How long has the Indonesian forest been on fire？

A. Six months.
B. Over a year.
C. Almost one year.
D. Six years.