Which technology uses qubits to process vast combinations of data in parallel.

The question asks which technology uses qubits to process vast combinations of data in parallel.

• A qubit (quantum bit) is the basic unit of quantum information, analogous to the bit in classical computing. Qubits can exist in a superposition of states, allowing for parallel processing of information.
• (A) Edge Computing focuses on processing data closer to the source, reducing latency. It does not inherently use qubits.
• (B) Neuromorphic Computing is inspired by the human brain's structure and function. It does not use qubits.
• (C) Quantum Computing is a paradigm that uses quantum-mechanical phenomena like superposition and entanglement to perform computations. It fundamentally relies on qubits.
• (D) Immersive Computing refers to technologies like virtual reality and augmented reality that create immersive experiences. It does not use qubits.

Based on the definition, Quantum Computing is the technology that utilizes qubits for computation.

The final answer is $\boxed{\text{C}}$