Explanation:

The question asks for an electronic path that connects different parts of a computer. A 'Bus' in computer architecture refers to a communication system that transfers data between components inside a computer, or between computers. It acts as a shared pathway for data, address, and control signals, enabling various hardware components to communicate. Option (a) 'Logic gate' is a fundamental building block of digital circuits, performing basic logical operations (e.g., AND, OR, NOT), not a general connection path between major computer components. Option (b) 'Serial Port' is an interface for serial communication with external devices (like older printers or modems), not the internal communication backbone for all components. Option (c) 'Modem' (Modulator-Demodulator) is a device that enables a computer to transmit data over telephone or cable lines, primarily for network connectivity to the outside world, not for internal component communication. Therefore, 'Bus' is the correct term for the internal electronic path connecting various computer parts.