Which one of the following is the context in which the term "qubit" is mentioned ?

A "qubit" or quantum bit is the fundamental unit of information in quantum computing, utilizing the quantum mechanical properties of superposition and entanglement to exist in multiple states simultaneously. While options like wireless communication or cloud services rely on classical binary bits (0 or 1), qubits allow for exponentially higher processing power for specific complex calculations. This question tests the core concept of quantum information theory and its distinction from traditional binary-based digital technologies.