CSV files can be imported and read using:*1 pointread.table("file.csv")read.csv("file.csv")write.csv("file.csv")none of the above

CSV files can be imported and read using the following steps:

1. Use the function read.table("file.csv") to import and read the CSV file. This function reads the file and creates a data frame in R.

2. Alternatively, you can use the function read.csv("file.csv") to directly import and read the CSV file. This function is specifically designed for reading CSV files and also creates a data frame.

3. If you want to write a data frame to a CSV file, you can use the function write.csv("file.csv"). This function writes the data frame to a CSV file with the specified name.

Therefore, the correct answer is: read.table("file.csv"), read.csv("file.csv"), write.csv("file.csv").