Select the option that is related to the third number in the same way as the second number is related to the first number.
-9/11 : 11/9 :: 13/2 : ?

Correct option is A

Observe how -9/11 is transformed into 11/9:
we switch the numerator and denominator (inversion) and also remove the negative sign.
we apply the same kind of transformation in a mirrored way—except now we must introduce a negative sign after inversion. Thus, 13/2 becomes −2/13.