During the Revolt of 1857, the sepoys first seized the 'bell of arms'. What is the 'bell of arms'?

A storeroom for weapons

The correct answer is Option (3) → A storeroom for weapons

"Late in the afternoon of 10 May 1857, the sepoys in the cantonment of Meerut broke out in mutiny. It began in the lines of the native infantry, spread very swiftly to the cavalry and then to the city. The ordinary people of the town and surrounding villages joined the sepoys. The sepoys captured the bell of arms where the arms and ammunition were kept and proceeded to attack white people, and to ransack and burn their bungalows and property. Government buildings – the record office, jail, court, post office, treasury, etc. – were destroyed and plundered. The telegraph line to Delhi was cut. As darkness descended, a group of sepoys rode off towards Delhi."