Light from a monochromatic source is incident on a single slit and the resulting diffraction pattern

Light from a monochromatic source is incident on a single slit and the resulting diffraction pattern is viewed on a screen. The graph shows the variation of intensity with distance on the screen. The intensity of the source remains the same. The width of the slit is increased. Which graph correctly shows the variation of intensity after the change? The original curve is shown with a dashed line.