The train from New Delhi to Agra leaves every two and a half hours. An announcement was made at the New Delhi Railway station that the train for Agra had left 50 minute ago and the next train will leave at 18:00 hrs. At what time was the announcement made?

• A. \[15:30\text{ }hrs\]
• B. \[17:10\text{ }hrs\]
• C. \[16:00\text{ }hrs\]
• D. \[16:20\text{ }hr.\]