The correction option is A.
The grounded theory of research is a systematic methodology that is used in social science, it involves the development of theory via gathering of data and analyzing them. A researcher who is using grounded theory will start by asking relevant questions and by collecting the correct type of qualitative data. Through this, the researcher can develop a new concept that will be a basis for a new theory.
For the traditional research, the researcher only has to choose an existing theoretical framework and then collect relevant data in order to investigate how the theory apply to the phenomenon he is studying. <span />
Answer:
the study of the structure, reaction, and composition of different kinds of substances
Explanation:

I believe the term you are looking for is puberty.
Answer: Self-Efficacy
Explanation: Self Efficiency is your belief of your capabilty to get a valued goal. Self efficiency is believing in your ability in a various situation,your ability either to succeed or believing you will fail. Our belief in our ability in either to fail or succeed,affects the way we think and how we act.
Gloves, Apron or Gown, Eye Protection, Surgical Mask.