Can someone answer this question really quickly please I will be grateful ASAP!

Question 18 (1 point) Using the figure below answer the following . Which statement is true? air nair = 1.00 soap film nfilm = 1.35 glass glass = 1.52 a phase change occurs at both boundaries a phase change occurs at the top boundary only a phase change occurs at the bottom boundary only a phase change does not occurO n = 1.0003 n = 1.35 n = 1.0003 n = 1.35Question 17 (1 point) Which of the following best demonstrates how a light ray will refract in the situation represented in the drawing? n = 1.0003 n = 1.35 n = 1.0003 n = 1.35 O n = 1.0003