Power Set of a Set

Q. The elements of power set of Set $A=\{-1,0,1\}$ are

1. $\left\{1\right\},\left\{0\right\},\left\{1\right\},\{-1,0\},\{0,1\},\{-1,1\},\{-1,0,1\}$
2. $\{-1,0\},\{0,1\},\{-1,1\},\varphi ,\{-1,0,1\}$
3. $\left\{1\right\},\left\{0\right\},\left\{1\right\},\{-1,0\},\{0,1\},\{-1,1\},\varphi ,\{-1,0,1\}$
4. $\left\{1\right\},\left\{0\right\},\left\{1\right\},\{-1,0\},\{0,1\},\{-1,1\},\varphi$

Q. The power set of the set $A=\{a,b,c\}$ is

1. $\left\{\right\{a\},\{b\},\{c\},\{a,b\},\{b,a\},\{a,c\},\{a,b,c\left\}\right\}$
2. $\{\varnothing ,\{a\},\{b\},\{c\},\{a,b\},\{b,a\},\{a,c\},\{a,b,c\left\}\right\}$
3. $\{\varnothing ,\{\left\{a\right\},\left\{b\right\},\left\{c\right\},\{a,b\},\{b,a\},\{a,c\}\left\}\right\}$