An engineer is tasked with analyzing a control system featuring both a major and minor feedback loop, as shown in the block diagram.

The system needs to meet the following requirements:

The overall system behavior must be analyzed quickly for high$-$level performance evaluation.

Intermediate dynamics of the minor loop are not a priority.

The engineer is not planning iterative design adjustments for the minor loop at this stage.

Which of the following approaches and characteristics are most appropriate for this scenario?

Multiple answers are allowed. The wrong answer will be penalized.

$$ A$.$ Focus on the Minor Loop Analysis for detailed insights into intermediate dynamics.

B$.$ Minor Loop Analysis provides modular insights, making it suitable for iterative tuning.

C$.$ Use the Equivalent System Form to simplify the entire system into one transfer function.

D$.$ Equivalent System Form helps analyze the overall system quickly without delving into internal details.

E$.$ Minor Loop Analysis is less effective for quick, high$-$level system evaluation.

F$.$ An equivalent System Form is ideal when tuning specifi feedback components is required$\mathrm{.}9$