Lines of symmetry are lines that divide a figure exactly by half.
From the pentagons given, the pentagon with the most lines of symmetry is the polygon in option 1
This is because lines of symmetry is a line which can be used to fold the pentagon into 2 equal parts. Since the first pentagon is a regular pentagon with five equal sides, it has 5 lines of symmetry.
Other polygons are irregular and most irregular polygons do not have lines of symmetry.
ANSWER:
OPtion 1