I think A.
The most remarkable feature of Harappan civilisation was its urbanisation. The Harappan places which were small towns, show an advanced sense of town planning. ... System town planning, drainage system, granary, dockyard, public bathing place, use of bricks, buildings, etc.
As a new faith, Islam gained strength<span>(A) within portions of the former Roman Empire.</span>
The Arab Spring in Libya deposed Gadaffi of power and began the Libyan Civil War because of the power vaccum left after the death of Gadaffi.
