The correct answer is B. Rivers in the eastern United States.
Step-by-step explanation
St Lawrence is a river that is located in the boarder between the United States and Canada, in the eastern area of United States, this river covers 1197 km of length and goes through Saint Louis and Champlain lakes.
The Connecticut River is placed in the New England eastern area of the United States and it has 640 km of length.
The Hudson River is an American river which is located in the eastern area of the country and goes to the south, its length is 507 km.
The Delaware River is located in the eastern of the United States which is 484 km length and goes to the south.
The Susquehanna River is an American river which is located in the eastern of the United States and has 715 km of length.
The Potomac is an eastern river of the United States it has 665 km of length and it flows to the Atlantic ocean.
The James is a river located in the eastern of the United States it goes to the south and has a length of 1.143 km.
The Savannah River has a length of 484 km and is located in the eastern of the United States, also it flows to the Atlantic Ocean.
So the correct answer is B. Rivers in the eastern United States.