You are designing a sequential circuit for a traffic light control system at a busy four$-$way intersection. The cir has the following requirements:

It has eight distinct states representing different traffic light configurations.

The system needs to minimize power consumption due to frequent state transitions.

The logic complexity should be manageable to reduce the overall cost and size of the circuit.

Given this scenario, choose the most appropriate state assignment method from the options below.

A$.$ Straight $($Binary$)$ Encoding

B$.$ One$-$Hot Assignment

C$.$ State Assignment with three guidelines $($also known as Karnaugh Map$-$based State Assignment$)$