Answer:
They protect the body from infectious agents.
And
They signal the immune system to destroy pathogens.
Explanation:
I HOPE THIS HELPS
Not sure but i think its plants
<span> Romanticism author usually are famous for the picture they sketch with their words about nature and beauty
so He would like to write about the
</span><span>the beauty of a weeping willow
</span>so i conclude option C is correct
hope it helps