The correct answer is a only.

• The Sustainable Development Goals are a universal call to action to end poverty, protect the planet and improve the lives and prospects of everyone, everywhere.
•  There are 17 Sustainable Development Goals and 169 Targets. Hence, Statement a is correct.
• The 17 Goals were adopted by all UN Member States in 2015, as part of the 2030 Agenda for Sustainable Development which set out a 15-year plan to achieve the Goals. Hence, Statement b is not correct.
• The NITI Aayog released the Baseline Report of the Sustainable Development Goals (SDG) India Index, which comprehensively documents the progress made by India’s States and Union Territories towards implementing the 2030 SDG targets. Hence, Statement c is not correct.
• SDG India Index :
  • Based on the score, the States and UTs were classified into four categories :
    • Achiever – when SDG India Index score is equal to 100.
    • Front Runner – when SDG India Index score is less than 100 but greater than or equal to 65.
    • Performer – when SDG India Index score is less than 65 but greater than or equal to 50.
    • Aspirant – when SDG India Index score is less than 50.
  • Kerala retained its rank as the top State with a score of 70 (2019-20). 
  • Chandigarh too maintained its top spot among the UTs with a score of 70 (2019-20).