In Comparison to Light Crude Oil, Which of the Following

Multiple Choice

In comparison to light crude oil, which of the following statements is NOT true with respect to heavy crude oil?

A) oil companies prefer heavy crude oil because it is more profitable.
B) heavy crude oil is more difficult to extract.
C) refining heavy crude oil is more expensive.
D) heavy crude oil is more viscous.
E) most of the remaining oil reserves consist of heavier crudes.