A wall-clock takes 9 seconds in tringing at 9 O clock. The time, it will take in tringing at 11 O clock, is [Note : The wall-clock trings 9 times at 9 O clock and 11 times at 11 O clock.]

• A. 10 seconds
• B. 11 seconds
• C.
• D. 11.25 seconds
• E. 10.80 seconds