A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C) If the assertion is true but the reason is false
D) If both the assertion and reason are false
E) If the assertion is false but reason is true
Correct Answer: A
Solution :
The lichen thallus is neither a parasite nor a saprophyte. Owing to symbiosis (between algae and fungi), it obtains its nutrition like a green plant. The algal cells photosynthesize with the help of chloroplast. Therefore lichen are autotrophic.
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