France's busiest seaport is located on the

atlantic ocean

english channel

mediterranean coast

rhine river

France's busiest seaport is located along the English Channel. I hope this helps.

Answerepicenter;

This would be an open primary. a closed primary people can vote only prior to election day if the party if they are registered. independent voters can not participate. there is not a wide-open primary, but there is a semi-open primary.