Answer:
The answer is E.
Step-by-step explanation:
All of these applications can be exercised to refrain native species from being affected by exotic species from other parts of the world.
Increasing inspections at customs for good coming in from other countries, especially if contains an agricultural product, can be very useful.
Emptying the bilge waters from ships etc. in ports instead of open ocean can prevent different species travelling to habitats where they would disrupt its function.
Untreated/unchecked wooden crates can carry living organisms on them such as different species of insects which can interfere with the natural life in a different area where they are not a part of the natural food chain.
I hope this answer helps.