What type of human activities are conducted in British Columbia’s coastal rainforests? i. Timber companies harvest trees. ii. Mining companies extract silver and gold. iii. Oil tankers travel up and down the coast. iv. Pipelines carry oil through the forest to the coast. A. i. and iv. only B. ii. and iii. only C. i., iii., and iv. only D. i., ii., iii., and iv.