Interest groups are primarily focused on which of the following activities?
a. actively promoting a particular cause or belief
b. encouraging economic growth in a particular sector
c. raising money for political candidates
d. informing the public about living conditions around the world

The correct answer is letter A.

Interest groups are primarily focused on actively promoting a particular cause or belief. They are usually composed of voluntary associations that publicly promote and create advantage for their specific cause. Charitable groups, trade associations, and civil rights groups are some examples of interest groups in society.

Is there not a question though?

Ummm they were radical