The correct answer is A) loss of habitat.
If a positive factor for harvesting trees is encouraging local industry, a negative could be loss of habitat.
Harvesting trees could help the local industry in a community but it also has terrible consequences for mother nature such as loss of habit and deforestation.
Trees harvesting means cutting trees to send then to sawmills and use the wood for industrial purposes such as the fabrication of furniture, construction, and others. But tree harvesting affects the Earth. It hurts animal, vegetation, an plants of the region. It could impact the ecosystem of the forest, generating a loss of habitat, deforestation.