A Freelance Computer Consultant Keeps a Database of Her Clients $S = \{ \text { Acme, Brothers, Crafts, Dion, Effigy, Floyd, Global, Hilbert } \}$

A freelance computer consultant keeps a database of her clients, which contains the names $S = \{ \text { Acme, Brothers, Crafts, Dion, Effigy, Floyd, Global, Hilbert } \}$
The following clients owe her money:
$A = \{ \text { Acme, Crafts, Brothers, Global } \}$
The following clients have employed her in the last year:
$G = \{ \text { Acme, Crafts, Dion, Brothers, Global, Hilbert } \}$
Find the clients who do not owe her money or have employed her in the last year.

A) $\{ \text { Brothers, Acme, Crafts, Dion, Global, Hilbert\} }$
B) $\{ \text { Acme, Brothers, Crafts, Global\} }$
C) $\{ \text { Acme, Brothers, Crafts, Dion, Effigy, Floyd, Global, Hilbert } \}$
D) $\{ \text { Dion, Hilbert } \}$
E) $\varnothing$