Explanation:

- i) Res Vs. Govinda is a landmark case related to murder, where the intricacies of intention and severity come into play.

- ii) Pyarelal Sharma case deals with theft, where the legal interpretations of theft under penal codes were discussed.

- iii) Barndeck Ghose case pertains to the concept of joint liability, focusing on how multiple individuals can be held responsible for a collective act.

- iv) Vishwanth case involves the right to private defense, highlighting the circumstances under which one can defend oneself legally.

Matching Codes:

- (i) d

- (ii) b

- (iii) a

- (iv) c

- Option 4: d b a c is the correct set of matches.