Sets — practice question

For part (a), $\mathcal{E} = \{a, b, e, g, l, m, o, r, t, y\}$, $P = \{a, b, e, g, l, r\}$ and $Q = \{e, g, m, o, r, t, y\}$. The diagram shows two intersecting circles marked $P$ and $Q$ within a rectangle marked $\mathcal{E}$. For part (b), the figure shows two intersecting circles marked $A$ and $B$ inside a rectangle labelled $\mathcal{E}$.