What is the error in the sentence: 'The RSO, along with the DCM, are scheduled to brief the Ambassador at 0800 hours on the security situation.'

• A. The sentence should read with 'is scheduled' (singular)
• B. The sentence should read with 'are scheduled' (plural)
• C. The phrase '0800 hours' should be spelled out as 'eight hundred hours'
• D. There is no error

Answer: (A)