Analyze the following statements regarding to the text from ...

I- The words causes, refers and slow, in the text, are classified as verbs. II- In the first paragraph, the letter i in the word quarantine is pronounced differently compared to any letter i in the word distancing. III- The words could and would are examples of modal verbs used in the text. IV- In the text, the words very, severely and roughly are classified as adverbs.
Choose the alternative with the correct answer: