By considering standard notations, in a worst-case scenario, the total load capacitance CL of gate Y depends upon the data activities on the neighboring signals and varies between which one of the following bounds?

• In digital circuit design, the total load capacitance (C₁) of a gate is a crucial parameter, especially in worst-case scenarios where variations can impact performance.
• This given option provide different expressions for C₁, considering the capacitance associated with specific signals and a constant factor (C_C).
• The total load capacitance C₁ is not only influenced by the capacitance of the individual signals but also allows for a flexibility of up to twice the constant factor C_C.
• This flexibility accommodates potential variations in the data activities of neighboring signals.
• +2C_C implies a certain tolerance for variations beyond the individual capacitance of the signals, providing a more robust estimation of C₁ in worst-case scenarios. 

Here, option 2 is correct.