Which statement best explains why it was hard for the Union’s blockade to succeed?

Explanation:

beacuse required the monitoring of 3,500 miles (5,600 km) of Atlantic and Gulf coastline, including 12 major ports, notably New Orleans and Mobile. Those blockade runners fast enough to evade the Union Navy could only carry a small fraction of the supplies needed.

because the vietnam war was fought in an especially brutal and untraditional way