The figure shows a hexagon ABCDEF. \[\angle A=\angle D={{100}^{o}}\].The other angles are of the same size. Find \[\angle ABC\].

• A. \[{{100}^{o}}\]
• B. \[{{110}^{o}}\]
• C. \[{{130}^{o}}\]
• D. \[{{120}^{o}}\]