My parents vacation each year in CO.

My parents vacation each year in CO.

• A. False
• B. True
• C. Not sure
• D. Sometimes

Answer: (A)

State names are usually written out in running text. Abbreviations like CO are common in addresses or tables, but in standard prose they’re generally replaced with the full name. So, while the meaning is clear, the sentence as written isn’t the preferred form in formal writing. The best way to express it is: My parents vacation each year in Colorado. The rest—subject “My parents,” the verb form “vacation,” and the time phrase “each year”—is fine; only the abbreviation choice makes the given version considered incorrect in formal context.

State names are usually written out in running text. Abbreviations like CO are common in addresses or tables, but in standard prose they’re generally replaced with the full name. So, while the meaning is clear, the sentence as written isn’t the preferred form in formal writing. The best way to express it is: My parents vacation each year in Colorado. The rest—subject “My parents,” the verb form “vacation,” and the time phrase “each year”—is fine; only the abbreviation choice makes the given version considered incorrect in formal context.