Final answer:
The General Reserve Corps can typically respond 'Code 1' only with supervisor approval, to ensure responses are appropriate and based on the urgency of the situation. (Option B).
Step-by-step explanation:
The question 'Are General reserve corp able to respond code 1' relates to the response codes used by emergency services, which may vary depending on the country or region.
However, typically 'Code 1' would indicate a response without lights and sirens, and 'Code 3' would be an urgent response with lights and sirens. The General Reserve Corps, if operating under standard emergency service protocols, may be allowed to respond 'Code 1' only under certain conditions.
In this context, the most accurate answer based on standard protocols would be B) Only with supervisor approval.
The need for supervisor approval is to ensure that the response is proportionate to the situation's urgency and the available resources. However, actual protocols may differ, so responders must be familiar with their organization's specific policies. 'Code 3' responses are typically reserved for emergencies where there is an immediate threat to life or property.