Among the following options, are the applications suitA, Ble for NB-loT ()? (Multiple choice).

NarrowBand-IoT (NB-IoT) is a Low Power Wide Area (LPWA) technology designed for applications requiring low data rates, long battery life, and wide-area coverage. Smart manhole covers, smart parking sensors, and intelligent water meters are ideal use cases. These devices are typically static, battery-powered, and transmit small amounts of data infrequently (e.g., status updates, readings). NB-IoT's excellent coverage and low power consumption are perfectly suited for these scenarios, enabling long-term, low-maintenance deployments.

B. Smart camera: This application requires high bandwidth to transmit video streams, which far exceeds the low data rate capabilities (kbps range) of NB-IoT technology.

1. Huawei Technologies Co., Ltd. (2017). NB-IoT Application Scenarios White Paper. Section 3, "Application Scenarios," details use cases like Smart Metering (p. 10), Smart Parking (p. 13), and Municipal Asset Tracking (which includes manhole covers, p. 15).

2. 3GPP TS 22.861, "Feasibility Study on New Services and Markets Technology Enablers (SMARTER); Stage 1," Version 14.0.0, Release 14. Section 7.2.2, "Smart Metering," and Section 7.2.5, "Smart City," describe typical LPWA application requirements met by NB-IoT.