单选题
11. Which of the following is NOT mentioned as an element in making the origami cat?
Origami is a great way to reduce stress and have fun! Here is a guide to an easy origami build; a simple cat. Make sure you have an exactly square piece of paper. Use the following steps to make an origami cat: • Fold the square in half down the diagonal line so that it becomes a triangle • Bend the top quarter of the triangle as if it has been cut off • Fold the other two edges of the triangle up into itself • Fold these edges again to get a greater curve • Flip over and draw on the face