The Boolean expression $( p \wedge q ) \Rightarrow ( ( r \wedge q ) \wedge p )$ is equivalent to:
(1) $( p \wedge r ) \Rightarrow ( p \wedge q )$
(2) $( q \wedge r ) \Rightarrow ( p \wedge q )$
(3) $( p \wedge q ) \Rightarrow ( r \wedge q )$
(4) $( p \wedge q ) \Rightarrow ( r \vee q )$