【单选题】What is the problem/gap of the previous research?
A.
Researchers have called for programs targeting this unique transition from adolescence into early adulthood, including those specific to weight loss.
B.
No previous studies have examined the relationship between frequent self-weighing and weight loss in a behavioural weight loss program targeting a broader sample of emerging adults.
C.
Previous studies were conducted within the context of weight gain prevention and focused exclusively on college students.
D.
In adults, frequent self-weighing has been associated with weight gain prevention, weight loss and weight loss maintenance and is not associated with unhealthy weight control practices or worsening of psycho- logical symptoms.
【简答题】Failure as he has been in his previous attempts, he still sticks _________ the research aimed __23. Failure as he has been in his previous attempts, he still sticks _________ the research aimed ______...