Lebanese Protesters formed a human chain of _______ across the country on 27-Oct-2019?

Lebanese Protesters formed a human chain of _______ across the country on 27-Oct-2019?A. 170KM
B. 180KM
C. 190KM
D. None of these

Tens of thousands of Lebanese protesters have formed a human chain running north to south across the entire country to symbolise national unity amid a civil disobedience campaign against the government.
Demonstrators on Sunday joined hands from Tripoli to Tyre, a 170-kilometre (105-mile) chain running through the main protest hub in the capital, Beirut, as part of an unprecedented cross-sectarian mobilisation.