To get NumPy representation of 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

To get the transpose of a dataframe D1, you can write …………… .

1. D1.T
2. D1.Transpose
3. D1.Swap
4. All of these

To extract row/column from a dataframe, ………… function may be used.

1. row()
2. column()
3. loc()
4. All of these