The error in the original sentence is in the parallel structure. In lists where multiple actions or tasks are mentioned, all the verbs should be in the same form. The verbs "oversee" and "inspect" are in the base form, but "coordinating" is in the -ing form. To maintain a parallel structure, "coordinating" should be corrected to the base form "coordinate." Similarly, options (a), (c) and (d) are incorrect. These options do not use the base forms. 'Managing' is the gerund form. 'Communicated' and 'made' are past tense forms.
Option (e) is correct as this option uses the base form 'ensure' that matches with the previously used base forms ('oversee' and 'inspect'). Hence, (e) is the correct answer.
The correct sentence is: At the construction site, the project manager will oversee work, inspect progress, and ensure that safety protocols are followed.
NOTE:
Parallelism: In grammar, parallelism, also known as parallel structure or parallel construction, is a balance within one or more sentences of similar phrases or clauses that have the same grammatical structure. Given below is an example which shows a sentence in two forms (parallel in structure and lacking parallelism): Lacking parallelism: Prerna likes cooking, dancing and to sing. Parallel: Prerna likes cooking, dancing and singing.