Which of These Statements Is/are True Regarding Carbon Dioxide

Multiple Choice

Which of these statements is/are true regarding carbon dioxide?

A) CO₂ levels are now 33% higher than before the Industrial Revolution.
B) The total amount is greater than any time in the last 800,000 years.
C) The rate of increase is increasing.
D) The U.S. produced 24% of global carbon dioxide.
E) They are all true.