The Internet of Things connects sensors, machines, devices, and systems so operational data can be captured and transmitted continuously. In a manufacturing plant, the primary benefit is real-time monitoring of production equipment, output, temperature, vibration, downtime, quality indicators, and maintenance conditions. This allows management to detect production issues quickly, reduce downtime, improve preventive maintenance, and optimize throughput. IoT may introduce cybersecurity and data-integrity concerns, but securing sensitive data and detecting cyberattacks are not its main production-process benefit. Data integrity also requires additional controls over devices, transmission, storage, and analytics. Internal auditors should evaluate IoT governance, access control, device security, monitoring, and operational reliance. Therefore, Option A is correct.