Question

Let $R$ be a relation from a set $A$ to a set $B$,then

• A. $R=A\cup B$
• B. $R=A\cap B$
• C. $R\subseteq A\times B$
• D. $R\subseteq B\times A$

Answer 1

The correct option is C $R\subseteq A\times B$

If $R$ is a relation from $A$ to $B$ then $R$ is the subset of $A\times B$ because it contains all the possible mappings from $A$ to $B$.