source GPrep.

[spoiler]OA = A.
Can someone please tell what is the problem with D....

why can't opening modifier modify the rise....

IMO the rise can be 26 barrels a year
[/spoiler]

Currently 26 billion barrels a year, world consumption of oil is rising at a rate of 2 percent annually.

A. world consumption of oil is rising at a rate of
B. the world is consuming oil at an increasing rate of
C. the world's oil is being consumed at the increasing rate of
D. the rise in the rate of the world's oil consumption is
E. oil is consumed by the world at an increasing rate of