Spectacles are related to eyes in the same way as crutches are related to ?

Correct option is D

Spectacles are related to eyes because spectacles are used to assist the eyes.
From the options for how crutches are related:
Accident – Crutches may be used after an accident, but this is a situational relationship, not direct.
Polio – Crutches may be used by individuals with polio, but this is also situational and specific.
Wood – Crutches can be made of wood, but this describes material, not the purpose of crutches.
Leg – Crutches assist the leg, just as spectacles assist the eyes.
Correct Answer is (d) Leg.