8. The spherical waves of wavelength \(\lambda\) emitted from a single point source are passing through two small holes, S1 and S2, which are separated by the distance of a, as shown in the figure. If c >> a, what is the approximated condition for destructive interference at a point P on the screen?(A)asinθ =1.5λ(B)asinθ =1.5λ(C)c sinθ=λ(D)b tanθ=λ(E)a sinθ =λ