Both panel members identified the same critical issue: the question asks which of four sentences are grammatically correct, but the four sentences themselves are missing from the prompt. Neither member could provide a definitive answer to the grammatical evaluation without seeing the actual sentences in question.

Sonar noted this directly and concisely, requesting that the four sentences be pasted so the analysis could proceed. Gemini 3 Flash took a more expansive approach, providing general guidance on common grammatical rules and error types that typically appear in such assessments—including subject-verb agreement, tense consistency, pronoun usage, punctuation conventions, word choice (homophones), and parallel structure. While this educational context is helpful for understanding how to evaluate sentences, it does not substitute for analyzing the specific sentences that should have been included.

To answer this question properly, the user must provide the four sentences they wish to have evaluated. Once those sentences are supplied, a thorough grammatical analysis can identify which ones are correct and explain the specific errors in any that are incorrect.