To reduce the amount of catenary you may（）.<br>A:shorten the hawser or increase the tug's speed<br>B:lengthen the hawser or reduce the tug's speed<br>C:place your tug in irons<br>D:make a sharp turn

To reduce the amount of catenary you may（）.
A:shorten the hawser or increase the tug's speed
B:lengthen the hawser or reduce the tug's speed
C:place your tug in irons
D:make a sharp turn

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