Which of the following statements is false regarding viroids?

Describe the structure of viruses.

What are the algal components of a lichen called?

Assertion $A$: Viruses are considered as a link between living and non-living organisms.
Reason $R$: Viruses are non-living,but they are obligate parasites in living cells.
Which option is correct for Assertion $A$ and Reason $R$?

Who discovered viroids?

Assertion $(S)$: The symbiotic association between algal and fungal components is called lichen.
Reason $(R)$: The study of lichens is called lichenology.