Which of the following simulatiry statements about the triangles in the figure is true?

Question

Triangle 1 is a Right Triangle with points MPO with P as the 90*
Triangle 2 is a Right Triangle with points NPO with P as the 90*
Triangle 3 is an Acute Triangle with points MON
(Answer Choices: Choose 1)
A. triangle NMO ~ triangle OPM ~ triangle NOP
B. triangle MNO ~ triangle MOP ~ triangle PNO
C. triangle MON ~ triangle MPO ~ triangle OPN
D. triangle ONM ~ triangle MPO ~ triangle PNO

Answer 1

C. triangle MON ~ triangle MPO ~ triangle OPN