Air pollution from a power plant is being monitored for levels of nitrogen dioxide and ground-level ozone. The levels are measured daily at the same time. Which of the following best predicts the impact of a dark and cloudy day on the readings for the levels of air pollutants measured? There will be no change in the levels of nitrogen dioxide or ground-level ozone.

A There will be a decrease in the level of nitrogen dioxide and an increase in the level of ground-level ozone.
B There will be an increase in the levels of both nitrogen dioxide and ground-level ozone.
C There will be an increase in the level of nitrogen dioxide and a decrease in the level of ground-level ozone.
D There will be an increase in the level of nitrogen dioxide and a decrease in the level of ground-level ozone.