The correct option is: PERFORM BACKGROUND RESEARCH TO LEARN WHAT IS ALREADY KNOWN ABOUT THE QUESTION YOU ARE TRYING TO ANSWER.
No research is completely new, some research has been done in the past that is related to the investigation you want to carry out, so the first thing you should do is to find out what has been done in the past in your topic of interest and how you can fit in with your research, this is called literature review. Conducting a literature review is very important, because it helps you to avoid doing what other has done in the past.
Oxygen is more electronegative than boron. It has more tendency to attract a electron pair while boron is electropositive that means it has more tendency to lose an electron so when there will be a bond between boron and oxygen than boron carries the partial positive charge while oxygen carries the partial negative charge.
"Electric charge: the proton and electron are electrically charged, while the neutron is not. The proton and electron, however, are oppositely charged. Role in the atom: Protons and neutrons are closely bound together in the nucleus of an atom, while electrons are spread out around the nucleus."
Electron, because they’re about 1/2000 the mass of a proton or nuetron