Which of the following are true for a single slit diffraction? A....

For single slit diffraction, linear width of central maximum is $W = \frac{2\lambda D}{a}$.
A: Width increases with wavelength (keeping $a$ constant) - TRUE since $W \propto \lambda$.
B: Width increases with decreasing wavelength - FALSE, opposite of A.
C: Width increases with decreasing slit width (keeping $\lambda$ constant) - TRUE since $W \propto \frac{1}{a}$.
D: Width increases with increasing slit width - FALSE, opposite of C.
E: Brightness increases with decreasing wavelength at constant slit width - TRUE since less wavelength means less diffraction spreading and more concentrated intensity.
Statements A, C, and E are true.