[单选题]
A monochromatic beam of light is incident7pvg hak)ic ; 8/2kt(sw 4uhne on a double sl 33g:fxczw:4jg 1egbmit arrangement where thefgxgwbjec34:mzg: 31 slit separation is $9.0\times10^{−5}\,m$ and the slit-screen distance is 1.0m. The graph below shows the relative intensity of the light reaching the screen with respect to the distance from the central point of the pattern.
What is the wavelength of the light?
A. $9.0\times10^{−7}\,m$
B. $3.0\times10^{−7}\,m$
C. $4.5\times10^{−5}\,m$
D. $4.5\times10^{−7}\,m$
