Whale beachings(搁浅)_______ be caused by factors such as illness, or disorientation(迷失方向)caused by extra noise in the oceans, ______ shipping or oil and gas drilling.
单选题
Whale beachings(搁浅)_______ be caused by factors such as illness, or disorientation(迷失方向)caused by extra noise in the oceans, ______ shipping or oil and gas drilling.