Question

what is the best way to avoid contaminating oceans?
ignore the issue and focus on land pollution
raise public awareness and be more careful
increase ocean mining and drilling

Explanation:

To avoid ocean contamination, ignoring the issue (first option) is counterproductive, and increasing ocean mining/drilling (third option) would likely increase contamination. Raising public awareness and being more careful promotes responsible actions to prevent ocean pollution.

Answer:

B. raise public awareness and be more careful