Who discovered lichens?

Which of the following lacks a capsid?

What is a bacteriophage known as?

Which of the following symptoms is $NOT$ seen in plants due to viruses?

Match the following columns:

Column-$I$	Column-$II$
$P$	$I$. Tobacco Mosaic Virus
$Q$	$II$. Bacteriophage
$R$	$III$. Adenovirus

Assertion $A$: Bacteriophages are bacteria-eating viruses.
Reason $R$: Bacterial viruses are obligate parasites in bacterial cells.
Which option is correct for Assertion $A$ and Reason $R$?