This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to find a phd advisor
Identify what you intend to research.
Ideally, you will have a specific idea, notion, or proposal ready for research before you find a phd advisor. Use this research topic to guide you when selecting an advisor.

Choose from:
a). Research advisors frequently make decisions online from social media because they don't know exactly what they're seeking. Once you've identified the type of advisor you intend to research, narrow your choices down to a handful of reliable, reasonable advisors.
b). Consider your job prospects and what sort of consulting tools and materials would be appropriate for you. For example, if you are a neurotherapist, you may want to research psychology, nursing, children and education.
c). Write down key concepts, nuances, and specifics that match up with your research findings. You want to use these details to narrow down your research options.
d). If you are interested in french military history and you apply to study with a historian specializing in chinese literature, you will probably not be accepted as a student. Even if you are accepted, your advisor will be of little use in your phd career because they will not have the background you need to investigate and think carefully about the topic you're interested in.
The answer is:
d).