Correct option is A
The correct option to fill in the blank is (a)
congregate.
Explanation: "Congregate" means to gather together, especially in large numbers. It fits with the context of football fans assembling. (भीड़ लगाना)
Example: Fans congregated outside the stadium.
Meanings of other options:
· (b)
Unravel – To untangle or solve (सुलझाना)
· (c)
Dissolve – To melt or fade away (घुलना)
· (d)
Clump – To form a compact mass (ढेर बनाना), not apt for people gathering.