Could someone PLEASE help me with these physics questions? please show work, I WILL RATE GOOD

(1) Before we consider the entire problem we will consider a simpler problem to shed some light on the symmetries of the physical set up. So consider an infinitely long line of charge represented by the long line in the figure (the dashes indicate the line goes to infinity). Draw the electric field lines at each of the labeled points in the figure. . c . B . A . D . E(2) Explain why the electric field lines must be perpendicular to the line of charge rather than slanted to the left or right