I'm pretty sure it's A. some
<span>a chemical reaction or other process in which the products themselves promote or spread the reaction, which under certain conditions may accelerate dramatically.</span>
Answer:
Dharahara was constructed for military usage as a watchtower. When incidents of national importance occurred, bugles were blown from the top floor of the tower. This was the signal for soldiers to assemble. This tradition of bugle trumpeting continued until the collapse of the tower.
It’s not d or a took that test
