Options C and D are correct choices
Here, we want to check for the possible ratios given that the two triangles are similar
Mathematically, when two triangles are siilar, the ratio of their corresponsding side lengths are equal
Now, the similar sides are; MN and QP ;
RP and MO ; NO and QR
We can now check for the correct options;
a) NM/NO = QP/QR
That means; NM * QR = NO * QP = 1
This means the first option cannot be correct
b) This is also incorrect; angle N should be similar to the angle at vertex Q
c) This is correct, angle N is similar to the angle at vertex Q
d) This is also correct as we can see that these sides are the similar sides in both triangles