Read the given statements, labelled Assertion (A) and Reason (R), and select the most appropriate option with respect to them. Statements: 'A': Carbon dioxide is not always a pollutant. 'R': Plants require carbon monoxide for growth that they get from carbon dioxide.
A.
Statement 'A' is true but statement 'R' is false.
B.
Both statements 'A' and 'R' are false.
C.
Both statements 'A' and 'R' are true but 'R' is not the correct explanation of 'A'.
D.
Both statements 'A' and 'R' are true and 'R' is the correct explanation of 'A'.
