Final answer:
The question asks which excavator series can be equipped with an A/C electronic control system. Accurate identification of the correct series requires specific information about the manufacturer and model, as different companies have varying offers and model designations for such features.
Step-by-step explanation:
The question pertains to which excavator series can be equipped with an A/C electronic control system. Among the options provided, I would require specific information about the manufacturer and the models to give an accurate answer because the availability of A/C electronic control systems can vary by manufacturer and by series. Generally, newer and larger excavator series from major manufacturers like Caterpillar, Komatsu, Hitachi, and Volvo, often offer A/C and electronic control systems. Such features are typically found in modern construction equipment to improve operator comfort and machine efficiency.
Without specific information about the brand or the context in which these series names are being referred to, it would be inappropriate to definitively say which series can come equipped with such a system.