Select the option that can be used as a one-word substitute for the given group of words.
Something that will cure all illnesses

Correct option is C

The correct one-word for the given group of words is (c) Panacea.
Panacea: A solution or remedy for all problems, especially a medicine for all diseases. (सर्वरोगहारी औषधि / सभी समस्याओं का हल)
Example: Education is often seen as a panacea for social problems.
Meanings of the given other options:
· (a) Wine: An alcoholic drink (शराब)
· (b) Vaccination: Injection to prevent diseases (टीकाकरण)
· (d) Tonic: A medicine that restores or improves health (बलवर्धक दवा)