Acne is to excessive secretion of oil
Oh this is easy.
Astronomy is the branch
<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
Https://www.ncbi.nlm.nih.gov/books/NBK10039/