Răspuns :
[tex]\varnothing \subset \{0,\ 1\} \ \ (A)[/tex]
[tex]\{0,\ 1\}\subset \{0,\ 1,\ 2,\ 3,\ 4\}\ \ (A)[/tex]
[tex]\{0,\ 1\}\subset \{0,\ 1,\ 2,\ 3,\ 4\}\ \ (A)[/tex]