help please

choose the correct answer:

1. The most suitable scale to represent a force 100N on a graph paper is:

a- 1 cm for 50N.

b- 1 cm for 1N.

c- 1 cm for 0.5N.

2. A karateka breaks a board with his hands. what is the most significant effects of this force?

a- Set the board in motion.

b- Modify the board's motion.

c- Deform the shape of the board.​