Focus groups are one of the most widely used methods to gain greater understanding of a current problem or to develop preliminary knowledge to guide in the design of descriptive or causal research.

Exploratory

Explanation:

Focus groups

It is a small group of 8-12 respondents guided by a moderator through a thorough debate on a specific subject or idea.It's great for generation of ideas, brainstorming, insight into motives, attitudes, and perceptions. it can  show likes, dislikes,emotional requirements and prejudices.

Exploratory methods are used to gain initial insights that could pave the way for further investigation.

Some of the exploratory methods are focus groups, Key informant,case studies,secondary data and observational data.

i think they are all correct

explanation:

they seem good