Which of the following statement is used for importing knitr library?

library(knitr)
import knitr
lib(knitr)
none of the mentioned

The correct answer is: A. library(knitr)

The library() function is used to load a library into the R environment. The knitr library is a powerful tool for creating dynamic documents from R code. It can be used to create HTML, PDF, and Word documents, as well as slideshows and interactive web pages.

The import function is not used to load libraries in R. It is used to import data from other languages, such as Python and SQL.

The lib() function is not used to load libraries in R. It is used to list the libraries that are currently loaded in the R environment.

Therefore, the correct answer is: A. library(knitr)