How long would it take for the crude oil reserves in Alaska's Arctic National Wildlife Refuge to be depleted if it were the world's only source of oil,and if global consumption continued at the current rate? 

A)  about 1 week 
B)  about 1 to 5 months 
C)  about 1 year 
D)  about 5 years

The Arctic National Wildlife Refuge (ANWR) in Alaska is estimated to contain significant amounts of crude oil, but even these reserves are not sufficient to meet global oil demand for an extended period. Given the current global consumption rate of approximately 100 million barrels of oil per day, the ANWR reserves, which are estimated to be in the billions of barrels, would only suffice for a relatively short period, making the option of about 1 to 5 months the most realistic estimate among the given choices.