6. If $\Gamma = \{z \mid z \text{ is a complex number and } |z - 1| = 1\}$, which of the following points lie on the graph $\Omega = \{w \mid w = iz, z \in \Gamma\}$? (1) $2i$ (2) $-2i$ (3) $1 + i$ (4) $1 - i$ (5) $-1 + i$
& 1，3，5 & & 17 & 2 & & 37 & 4
6. If $\Gamma = \{z \mid z \text{ is a complex number and } |z - 1| = 1\}$, which of the following points lie on the graph $\Omega = \{w \mid w = iz, z \in \Gamma\}$?\\
(1) $2i$\\
(2) $-2i$\\
(3) $1 + i$\\
(4) $1 - i$\\
(5) $-1 + i$