Multi-select problem: How does the next paragraph end?

How to become a marine biologist
Conduct research on all aspects of marine biology.
Do independent research on different aspects of marine biology so that you can pinpoint what you like to do in the field. There are many different things that marine biologists can do.

Pick your answer from:
[i] Talk to other marine biologists at different schools. This will help you know if you are a good fit for marine biology when you pursue a specific major.
[ii] Some concentrate on spending their time with aquatic life while others focus on research. Read scientific papers so that you get an idea for the type of work that you will have to do.
[iii] Consider what you think you would be studying most or not, then think back to your personal interests. Identify marine biology at the core of your interest, and evaluate your current field.
[iv] Always keep a notebook and a pen handy during your courses. Study the basics of marine biology so that you can take that knowledge and apply it to your academic and professional work.
[ii]