The Germans planned to beat France in 6 weeks. What was the most important part of the plan in the west?
O Stick to the 6 week timeline.
Go to the Sea and cut off Britain from cueing too help France.
O First chance, get to Paris as soon as you can.

Go to the Sea and cut off Britain from cueing too help France.

Explanation:

The Germans knows that, the only way to be able to beat the France in 6 weeks is to prevent France from getting any form of help when they are attacked. In order to achieve this, the Germans had no option than to go to the sea and cut off Britain from accessing the channel when they will be trying to help France. This was the most important plan which they had.