Explanation:

- The Sukanya Samriddhi Yojana is a savings scheme launched by the Indian government aimed at encouraging parents to build a fund for the future education and marriage expenses of their girl children.

- Option 1: 2015 - This year is indeed when the scheme was operational and widely adopted.

- Option 2: 2016 - There were no major national savings schemes of this nature launched this year.

- Option 3: 2018 - This year is not related to the launch of the Sukanya Samriddhi Yojana.

- Option 4: 2014 - This is the correct year when the Sukanya Samriddhi Yojana was launched, specifically on January 22.

- Option 5: 2013 - The scheme was not conceived or launched this year.

Answer: Option 4 - 2014

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