Answer:
1, 3, & 4.
Is the way to do so. Good luck.
The fill handle will appear as a small square in the bottom-right corner of the selected cell(s). Click, hold, and drag the fill handle until all of the cells you want to fill are selected. Release the mouse to fill the selected cells
Independent Component Analysis (ICA) is based on information-theory and is also one of the most widely used dimensionality reduction techniques.
Answer is the son-father-grandfather concept. Good luck