Why do you think land along coastal regions is used for manufacturing and trade more than inland areas? ?

Manufacturing and trade benefit from coastal regions because it is easier to ship and receive products and materials.  Costs of shipments like trucks to ship product is also reduced if the manufacturer is very close to the receiving dock.

Having water closeby is also beneficial; if the business can use sea or river water in their manufacturing costs are also lower.

it is very hard for the climatologists to precisely predict how will the global temperatures be changing so there's lots of models, some of which differ significantly, this is due to multiple factors, and probably the most important is the human activity.

humans have been a key factor in climate change around the globe since the start of the industrial revolution, and in the past few decades the consequences are becoming more obvious. there's lots of emission of pollutants in the atmosphere as well as changing the environment on the surface itself, so it's really hard to predict how will that go in the future because there's some countries that are reducing the damage and are going towards green energy, while others are stubbornly continuing with pollution and damages to the environment.

the answer would be b).