Potential Issues with Direct Injection of CO₂ into the Deep

Potential issues with direct injection of CO₂ into the deep ocean include all of the following except ________.

A) potential acidification
B) the legal basis for injecting carbon
C) potential impacts to the deep-ocean ecosystem
D) uncertainly in how long the CO₂ would stay at depth
E) All of these choices are correct.
F) None of these choices is correct.