The symbol for current is:

The symbol for current is represented by the letter "I." This designation has its origins in the French term "intensité de courant," which translates to "current intensity." In electrical theory, current refers to the flow of electric charge, specifically measured in amperes (A).

Using "I" to symbolize current is a standard convention in electrical engineering and physics. This notation helps maintain clarity and consistency across various equations and applications, such as Ohm's Law, where the relationship between voltage (V), current (I), and resistance (R) is expressed as V = IR.

In contrast, the other options represent different electrical parameters: "C" does not correspond to a standard electrical quantity, "A" represents amperes, which is the unit of measurement for current rather than its symbol, and "V" denotes voltage, the electric potential difference in a circuit. Understanding these distinctions is crucial for grasping the fundamentals of electrical theory and practice.