Question

Which of the following is a decomposition (HAS-A)?
O
A
Device, Mobile
B
Computer, Keyboard
Line Poem
Company. IBM
D​

Answer 1

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Answer 2

Following are the options that have (HAS-A) relation.

Computer, Keyboard: Computer has a keyboard

Line Poem: Poem has a line.

HAS-A relationship has 2 types:

i) Aggregation: part can exist without the whole.

ii) composition: part ceases to exist without the whole.

Mobile is a Device

IBM is a company

These two above don't have a HAS-A relationship.