What has had the greatest impact on the fishing industry in north america over the past 50 years
a. improvement and modernization of boats and equipment
b. improvement in fisheries management
c. international treaties outlining proper use of international waters for fishing
d. increased satellite capabilities

Correct answer choice is :

With the advancement of industrial fishing, and the resulting incursion of the refuges earlier presented by distance and depth, our communications with fisheries resources have come to relate the wars of extermination that recently arrived hunters conveyed 40 000–50 000 years ago in Australia, and 12 000–13 000 years ago against large temporal mammals in North America.

the answer is translated आशा है कि मैंने मदद की.