Answer:
and
are the reference angles.
Step-by-step explanation:
Reference angle is the angle which makes from the terminal side of the x-axis.
You can see the attachment for the angles which are reference angles.
Angle A is equal to 
B is equal to 
C is equal to 
D is equal to 
We will apply all four operations of A,B,C and D
A=
B= 
C=
D=
Therefore, Option 2 and 4th are correct from the given options.
and