[单选题]
Three monochromatic li*8bhb nfkb- s;d9na2a ght sourcesxhi-5 izylr5a;:jp u9ne 9x k5v+lp9e, $K$, $L$, and $N$, are incident on a single slit separately. The diagram shows obtained diffraction patterns on the screens for each light source along with the relative widths of their central maxima.
In which option are the possible colors of the light sources given correctly?
A. $K$ is red;$L$ is green;$N$ is violet
B. $K$ is green;$L$ is violet ;$N$ is red
C. $K$ is violet;$L$ is red;$N$ is green
D. $K$ is violet;$L$ is green;$N$ is red
