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Following ERD shows a Cell Phone Company's database design. Is the company able to track a manufacturer without maintaining information about its handsets? Family member

Following ERD shows a Cell Phone Company's database design. Is the company able to track a manufacturer without maintaining information about its handsets?

Family member

Customer

Manufacturer

Handset Type

Is responsible for

Belongs

Handset

Includes

Operating System

Plan

Plan Type

Only for some Handset Types.

Yes

Not enough information to answer.

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