The figure shows two parallel lines pq and st cut by the transversals 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

Aresearch study is studying the effects of a new drug for osteoporosis alzheimer's disease (ad) for women above the age of 65 years. a group of individuals with osteoporosis is randomized into two groups. one group is treated conventionally, and the second group is treated with the new medication. assessments are made at 3, 6, 12, 36, and 48 months. the conventionally treated group is assessed for ad using a serum blood test, and the treatment group is assessed for ad using a pet radiotracer that binds to beta-amyloid plaques. in comparing these 2 trial arms, the authors of the study may encounter which type of bias? a. selection bias on the risk of developing b. measurement bias c. confounding bias d. recall bias e. lead-time bias