For a Service Business,the Minimum Cardinalities Between Sales Event and Inventory

question 90

Multiple Choice

For a service business,the minimum cardinalities between Sales event and Inventory entity are most likely both 0 for all except which of the following reasons?

• A)Service businesses don't sell inventory,they only use inventory to perform services.
• B)A sale doesn't have to include any inventory.
• C)Inventory can exist that hasn't been part of a sale yet.
• D)Some services only require labor.

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Definitions:

Inductive Reactance

The opposition that inductors present to the flow of alternating current, due to the phase shift between voltage and current, measured in ohms.

Coil

An electrical component made by winding conducting wire around a core or forming it into a loop or series of loops, often used in inductors and transformers.

Reactance

The opposition a circuit element offers to the flow of alternating current, due to its capacitance or inductance, affecting the phase between voltage and current.

Inductive Reactance

The opposition that an inductor presents to alternating current, due to its inductance, measured in ohms.