-Which Star in Table 2-1 Would Not Be Visible to the Unaided

Multiple Choice

-Which star in Table 2-1 would not be visible to the unaided eye of an observer on Earth?

A) ( $\alpha$ Cet)
B) ( $\alpha$ CMa)
C) Nim
D) ( $\rho$ Per)
E) ( $\delta$ Dra)