An informal grouping of officials, lobbyists, and policy specialists who come together temporarily around a policy problem is

select one:

a. an iron triangle.
b. an issue network.
c. a caucus.
d. a policy system.
e. an ideological network.

an issue network

Explanation:

An issue network -

It is the practice , where certain group of people come together in order to work for a common goal or activity , is referred to as an issue network.

The issue network can be domestic as well as international .

Many online and social media platform are used in order to perform an issue network.

Hence, from the question, the correct term for the given information of the question is an issue network.

the answer would be in this answer. someone already asked the question.