Question: Suppose a class DeliveryOrder has been defined to model a delivery order. How should the standard delivery charge of $ 1 5 imposed on each

Suppose a class DeliveryOrder has been defined to model a delivery order. How should the standard delivery charge of $15 imposed on each DeliveryOrder object be implemented as? The application should be able to update the value of this delivery charge over time.
A) Local variable
B) Instance variable
C) Class variable
D) A parameter of the __init__ method

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