Completamiento con patrones regulares?

En las figuras puedes ver a lguonos ejercicioes de completamiento de patrones, las respuestas respectivas para caad una son :

1.

A - reasoning : next figure swaps color (white for black and viceversa, and adds one square in linear order : down, right, up, left (depending on big square figure)2.

C - reasoning : clock - wise order, long line up and down directions, short line right - left directions, plain lines model followed by a black - filled center figure with same pattern repeated.

3. D - reasoning : black - solid figure pattern, followed by lines - simple pattern, then repeat (new different black - solid figure).