The governor of New York calls a press conference to address a major environmental problem in the state. In his speech, he mentions that pine forests in upstate New York are turning brown and dying, that fish in upstate rivers are being found dead on the shore, the soil quality all over the state is suffering, and that the metal in buildings in New York City is corroding.

What environmental problem likely caused all of these problems?

A) Smog from city areas is causing acid rain.
B) Global warming causes all of these problems.
C) The groundwater has become polluted from city runoff.
D) There is a hole in the ozone layer over New York state.