Which expression is equivalent to p−43p+2−p2q−4pqp(p−4)?
p2q−4pq3p2q+2pq−p2−4p
p2q−4pq3p2q+2pq−p2+4p
p−43p2q+2pq−p2+4p
p2q−4pq3p2q+2pq+p2−4p