In the diagram ${D_1}{D_1}$ is a straight line demand curve and ${D_2}{D_2}$ is a rectangular hyperbola curve.
Which statement is correct?

1 )
${D_2}{D_2}$ is more elastic than ${D_1}{D_1}$ at point M.
${D_2}{D_2}$ is more elastic than ${D_1}{D_1}$ at point N.
3 )
The elasticity of demand increases on moving down both curves.
4 )
The elasticity of demand is inelastic at point M on both curves.
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