According to Oliver Houck, a Law Professor at Tulane University

According to Oliver Houck, a law professor at Tulane University who studied the BP disaster, the disaster was the result of ____.

A) the use of risky technology without proper vetting through existing laws and policies
B) declining energy use and therefore revenues for the major petroleum companies
C) the use of legally approved but outdated technologies
D) a lack of laws and policies that could have prevented this type of major oil spill