Answer:
I believe the answer is A.
Hope this helps!
Pregnenolone is produced from cholesterol and is a precursor to other steroid hormones, including progesterone, estrogen, testosterone, and DHEA. Pregnenolone levels decline with age, and a deficiency can lead to anxiety, mood imbalances, greater perceived stress, and poor cognitive function.
Answer: Delphi Technique
Explanation:
Delphi Technique is the method in which group communication takes place between experts for forecasting about any particular subject through discussion. This discussion is carried between expert panel through questionnaires in multiple level or rounds.
Series of questions are sent to them upon which judgement and decision is made through systematic debate.This process is for estimation without face to face meeting. .