The correct option is C <!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}-->
I love the smell of books.
<!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}-->
Here, ‘smell’ is used as a noun to refer to the scent or odour of something. It also uses the article ‘the’ before it. Hence, 'I love the smell of books.' is correct.