Where was the 350-meter tall -“Lotus tower”, the tallest tower of South Asia worth over $100 million unveiled recently ______ ?

1) Kabul, Afghanistan
2) New Delhi, India
3) Colombo, Srilanka
4) Beijing, China

Explanation:
On September 16, 2019 president of Sri Lanka(SL) Shri Maithripala Sirisena unveiled “Lotus tower” which is the tallest tower of South Asia that cost over $100 million. 80% of the funding cost of the tower situated in Colombo, Srilanka has been done by China under the Belt and Road Initiative(BRI).Building features: It is a 350-meter-tall building having 17 storeys spread over an area of 30,600 sq. metres.