How can the composition (black diamond) relationship be used to relate Requirements?

Choose the correct answer

How can the composition (black diamond) relationship be used to relate Requirements?
A . Composition allows requirements to inherit properties and requirements relationships
B. Composition allows role names to be assigned to sub-requirements thus providing a contextual reference
C. Composition allows a particularly useful requirement to be reused by multiple higher level requirements or specifications
D. Composition allows a requirement to be decomposed into sub-requirements as long as they don’t add to or change the meaning of the original requirement.
E. Requirements cannot use composition. They are not classifiers

Answer: B

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