Which of the Following Is True of Rows and Columns

Which of the following is true of rows and columns in Excel?

A) To add a column,click on the name of the column after which you want to insert new columns.
B) To decrease the height of a row,drag the line between the line numbers up.
C) To insert new rows,click the number of the row below which you want new rows,and select as many rows as you want to insert.
D) To increase the size of a column,drag the line between the two columns in the column headings to the left.