Whose statement is reasonable? The picture shows a wooden frame. Xiao Ming said: "This is a quadrilateral." Xiao Jiang said: "This is a parallelogram. Use force to

Xiao Ming said: "This is a quadrilateral", which is correct, but not comprehensive;

Xiao Jiang said: "This is a parallelogram, and it will not deform even if it is pulled hard." No, because the parallelogram is unstable (easy to deform);

Xiaoying said: "This figure is easy to deform, but if you nail a wooden strip between AC and AC, it will not be easy to deform!" The statement is correct. , because nailing a wooden strip between AC will turn it into two triangles, and the triangle has stability;

So Xiaoying's statement is the most reasonable.