Write Down All the Subsets of the Given Set $\{ \mathrm { p } , \mathrm { q } , \mathrm { r } \}$

Multiple Choice

Write down all the subsets of the given set.
- $\{ \mathrm { p } , \mathrm { q } , \mathrm { r } \}$

A) $\{ p \} , \{ q \} , \{ r \} , \{ p , q \} , \{ p , r \} , \{ q , r \} , \{ p , q , r \}$
B) $\varnothing , \{ p \} , \{ q \} , \{ r \} , \{ p , q \} , \{ p , r \} , \{ q , r \} , \{ p , p \} , \{ q , q \} , \{ r , r \} , \{ p , q , r \}$
C) $\varnothing , \{ p \} , \{ q \} , \{ r \} , \{ p , q \} , \{ p , r \} , \{ q , r \}$
D) $\varnothing , \{ p \} , \{ q \} , \{ r \} , \{ p , q \} , \{ p , r \} , \{ q , r \} , \{ p , q , r \}$