Answer:
D
Step-by-step explanation:
Perfect square => like 5²=25 , 6² = 36, 8²=64
Composite => like 2,3,5,7,11,13,17,19....
Positive => more than 0
Imaginary => ''i'' numbers. i=[tex]\sqrt{-1}[/tex]
and [tex]\sqrt{-7} = \sqrt{-1}.\sqrt{7} = i\sqrt{7}[/tex]
Hope it helps ^-^
