What are the limitations regarding alterations to stop objectionable currents?

The correct answer emphasizes the importance of adhering to established grounding and bonding requirements when making alterations to prevent objectionable currents. This is critical because grounding and bonding are fundamental to ensuring safety in an electrical system. Violating these requirements can lead to hazardous conditions such as electric shock, equipment damage, or even fire.

By specifying that actions must not violate grounding and bonding requirements, it ensures that any modifications made to stop objectionable currents are safe and compliant with standard practices. This helps maintain the integrity of the electrical system, ensuring that all equipment operates correctly and safely while minimizing risks associated with electrical faults.

In contrast, the other options do not capture the essence of comprehensive safety and compliance with electrical standards. They either suggest restricted or inappropriate practices regarding grounding alterations or fail to encompass the broader requirement of ensuring that all changes conform to essential safety standards.