The axis 1 identifies a DataFrame's …………… .

1. rows
2. columns
3. values
4. datatype

To get the number of elements in a dataframe, …………… attribute may be used.

1. size
2. shape
3. values
4. ndim

To get a number representing number of axes in a dataframe, …………… attribute may be used.

1. size
2. shape
3. values
4. ndim

Which attribute is not used with DataFrame ?

1. Size
2. Type
3. Empty
4. Columns