Parmanand Katara v. Union of India is remembered for a very specific extension of Article 21, so this question is best answered by pinning down exactly what the case decided rather than the broader family of rights it touches. Let's go through each option.
The judgment is specifically remembered for establishing that emergency medical treatment cannot be withheld pending legal formalities, which makes the right to emergency medical care the precise right associated with it.
Hence, the correct answer is Right to emergency medical care.