The modern laboratory recently purchased expensive ________ to upgrade its research facility.Choose the option that completes the sentence with correct noun usage.

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A apparatuses and machineries
B apparatus and machinery
C apparatuses and machinerys
D apparatus' and machineries

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Answer: B. apparatus and machinery

Correct Answer: b) apparatus and machinery
Explanation: "Machinery" is an uncountable abstract/collective noun and has no plural form. "Apparatus" can serve as both singular and plural when referring to a collection of tools.

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The modern laboratory recently purchased expensive ________ to upgrade its research facility.Choose the option that completes the sentence with correct noun usage.

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