Assertion : The pathogens can enter our body by various means multiply and interfere with normal vital activites resulting in morphological and functional damage.
Reason : All parasites are pathogens.
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 but 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.