Antonym of DISPERSE

Answer: Option B

Disperse : distribute or spread over a wide area.
Collect : bring or gather together (a number of things).
Assemble : (of people) gather together in one place for a common purpose.
Hoard : a stock or store of money or valued objects, typically one that is secret or carefully guarded.
Save : keep safe or rescue (someone or something) from harm or danger.

Antonym of Disperse is Assemble