In the question below, a paragraph is split into several parts. Examine each part for grammatical accuracy and select the option that correctly identifies which parts are grammatically correct or incorrect.

(A) Climate change have become a pressing issue across the world. Scientists (B) warns that if emissions keep rising, heatwaves will intensify. Rising sea levels threaten coastal cities, displacing communities (C) and damaging infrastructure. Simple actions, like reducing energy waste and using public transport, can make a meaningful difference. (D) Governments and businesses must invest in clean technologies (E) while supporting workers through a just transition.

Correct Answer: C, D and E are correct

Let us analyze each part of the paragraph step-by-step to identify the grammatical errors:

Part (A): "Climate change have become a pressing issue across the world. Scientists"
• Analysis: The subject "Climate change" is a singular noun phrase. Therefore, it requires the singular auxiliary verb "has" instead of the plural verb "have". The correct sentence should read: "Climate change has become a pressing issue across the world."
• Status: Incorrect.

Part (B): "warns that if emissions keep rising, heatwaves will intensify. Rising sea levels threaten coastal cities, displacing communities"
• Analysis: The subject "Scientists" (from part A) is plural, so it requires the plural verb form "warn" rather than the singular form "warns". The correct phrasing should be: "Scientists warn that..."
• Status: Incorrect.

Part (C): "and damaging infrastructure. Simple actions, like reducing energy waste and using public transport, can make a meaningful difference."
• Analysis: This part is grammatically correct and uses proper subject-verb agreement and parallel structures ("reducing...", "using...").
• Status: Correct.

Part (D): "Governments and businesses must invest in clean technologies"
• Analysis: Plural subjects ("Governments and businesses") properly agree with the modal verb phrase "must invest".
• Status: Correct.

Part (E): "while supporting workers through a just transition."
• Analysis: This participial clause is grammatically well-formed and seamlessly joins with part (D).
• Status: Correct.

Conclusion:
Parts A and B contain grammatical errors, while parts C, D, and E are grammatically correct. Hence, the option "C, D and E are correct" is the correct choice.