It isa situation or meeting in which people can talk abouta problemor matter especiallyof pubkuc interest in a public place

Public forum.

Explanation:

A group discussion can be defined as a form of communication in which a group of people meet face-to-face (one on one) or connect remotely (via the internet) to exchange ideas, interact, and share opinions on a common topic or subject matter.

Generally, group discussions comprises of members and a leader who is saddled with the responsibility of presenting the topic, stating the facts and overall coordination of the discussion. Also, the various members involved in the group discussion are able to connect what they see, hear and how everyone responds to each other.

A public forum is a form of group discussion in which there's a moderator that moderates the discussion and ensure members abide by set rules.

Hence, public forum is a situation or meeting in which people can talk about a problem or matter especially of public interest in a public place.