List all the given numbers that are (a) integers, (b) rational numbers, (c) irrational numbers, (d) real numbers, and (e) imaginary numbers.\\
1. $\sqrt{-4}$, $\frac{\sqrt{7}}{2}$, -6, $-\frac{\pi}{6}$, $\frac{1}{6}$, $-\sqrt{-3}$, -2.33\\
(a) Identify the numbers that are integers. Select all that apply.\\
A. $\sqrt{-4}$\\
C. $\frac{1}{6}$\\
E. $-\frac{\pi}{6}$\\
G. $-\sqrt{-3}$\\
B. -2.33\\
D. 1\\
F. -6\\
H. $\frac{\sqrt{7}}{2}$