Which sentence uses the apostrophe correctly?

Answer and explanation

Correct answer: D. The lecturers' offices are on the second floor.

  1. Step 1: For a plural noun ending in -s, the possessive apostrophe follows the s. Step 2. 'Lecturers' offices' shows the offices belong to several lecturers. Answer: The lecturers' offices are on the second floor. Why not the others: The other sentences place the apostrophe incorrectly or imply a single lecturer.

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