I think the answer is A: defining the problem and proposing a solution.
Answer:
Here are six ways to stop overthinking everything:Notice When You're Thinking Too Much. Awareness is the first step in putting an end to overthinking. ...Challenge Your Thoughts. ...Keep The Focus On Active Problem-Solving. ...Schedule Time For Reflection. ...Practice Mindfulness. ...Change The Channel.
Answer: I'll give you quite a few.
Explanation:
Convenience sampling: (strengths) least expensive, least time consuming too. Most convenient.
(Weaknesses) selection bias. Not recommend by casual research.
Judgment sampling: (strengths) low cost, not time wasting. Convenient, ideal for exploratory research.
(Weaknesses) does not allow generalized subjective.
Snowball sampling: (strengths) can estimate rare characteristics.
(Weaknesses) time consuming.
