Correct option is C
Option (c) contains an error.
Explanation: The verbs should be in the
same tense for parallel actions. "Have been enrolled" is present perfect, so "resigned" should be changed to
“have resigned.”
Grammatical rule used:
�� Maintain parallelism in verb forms in a sentence when actions occur together.
Example: She has finished the project and has submitted the report.
��
Information Booster: Use consistent verb tense in compound predicates to avoid awkward or incorrect shifts.