Below Is a Picture of the Enormous Bingham Canyon Copper

Multiple Choice

Below is a picture of the enormous Bingham Canyon copper mine in Utah. What is the reason that the mine is so large?

A) It is unknown if any copper underlies this deposit, so miners must continue to dig to find it.
B) Copper is economically valuable even in small quantities, so it is considered to be worth creating a large hole to extract as much as possible.
C) Copper exists in abundant quantities, so miners are trying to extract as much as possible.
D) The mine is the only location on Earth where copper is found, so the hole needs to be large.