A vessel is equipped with twin propellers，both turning outboard with the engines half ahead.If there is no wind or current and the rudders are amidships，what will happen？

A vessel is equipped with twin propellers，both turning outboard with the engines half ahead.If there is no wind or current and the rudders are amidships，what will happen？
A.The bow will swing to starboar
B.The bow will swing to port.
C.The vessel will steer a zigzag course.
D.The vessel will steer a fairly straight course.
正确答案：The vessel will steer a fairly straight course.