The figure shows two parallel lines pq and st cut by the traversals pt and qs.

which statement best explains the relationship between triangle pqr and triangle tsr?

triangle pqr is similar to triangle tsr because measure of angle 3 equals measure of angle 4 and measure of angle 1 equals measure of angle 5

triangle pqr is congruent to triangle tsr because measure of angle 3 equals measure of angle 4 and measure of angle 1 equals measure of angle 5

triangle pqr is similar to triangle tsr because measure of angle 3 equals measure of angle 6 and measure of angle 1 equals measure of angle 4

triangle pqr is congruent to triangle tsr because measure of angle 3 equals measure of angle 6 and measure of angle 1 equals measure of angle 4