What is the prime issue affecting the galop canal? o a) agricultural effluent is contaminating the waters b) collapse of the sidewalls because it was buit in weak soils oc) aging infrastructure is exceptionally expensive to maintain d) net loss of water because of modern drought

C. Ageing infrastructure as exceptionally expensive to maintain.

Explanation:

Near the South Nation River lies the Galop Canal, the historical predecessor to the St. Lawrence Seaway. Galop Canal ran 12 kilometers from Iroquois to Cardinal. The nature of life along the St. Lawrence banks began to change and newer, larger, locks were built to ship larger amounts of cargo from the Great Lakes.

a is the answer i believe.