The correct answer is option 'C' - SDG 3.

Explanation:
The Pradhan Mantri - Jan Arogya Yojana, also known as Ayushman Bharat or the National Health Protection Scheme, is a flagship program of the Government of India. It aims to provide health insurance coverage to economically vulnerable sections of society, particularly targeting the poor and marginalized.

SDG 3: Good Health and Well-being
SDG 3 focuses on ensuring healthy lives and promoting well-being for all at all ages. It includes targets such as reducing maternal and child mortality, combating communicable diseases, and providing universal access to healthcare services.

The Pradhan Mantri - Jan Arogya Yojana aligns with SDG 3 in several ways:

1. Universal Health Coverage: The scheme aims to provide health insurance coverage of up to Rs. 5 lakh per family per year for secondary and tertiary care hospitalization. This helps in ensuring universal access to healthcare services, which is a key component of SDG 3.

2. Maternal and Child Health: The scheme covers various healthcare services related to maternal and child health, including pre and postnatal care, newborn care, and treatment for childhood diseases. This contributes to the targets of reducing maternal and child mortality under SDG 3.

3. Disease Prevention and Treatment: The scheme covers a wide range of illnesses and treatments, including major surgeries, cancer treatment, and organ transplant. By providing financial protection against catastrophic healthcare expenses, it helps in ensuring access to quality healthcare services, which is essential for disease prevention and treatment.

4. Equity and Inclusion: The Pradhan Mantri - Jan Arogya Yojana prioritizes vulnerable sections of society, such as the poor, marginalized, and socially disadvantaged groups. It aims to bridge the gap in access to healthcare services and reduce health inequalities, which are important aspects of SDG 3.

In summary, the Pradhan Mantri - Jan Arogya Yojana contributes to the achievement of SDG 3 by promoting universal health coverage, improving maternal and child health, preventing and treating diseases, and promoting equity and inclusion in healthcare.