Assertion : Secondary metabolites are produced in small quantities and their extraction from the plant is difficult and expensive.
Reason : Secondary metabolites can be commercially produced by using tissue culture technique.
A. If both assertion and reason are true and the reason is the correct explanation of the assertion
B. If both assertion and reason are true and the reason is not the correct explanation of the assertion
C. If assertion is true but reason is false
D. If both assertion and reason are false
