Lucas is having a hard time selecting a topic for his informative speech so he decided to ask his classmates what topics they'd most like to learn about. what process of topic selection did he engage in?

Analyze the needs of audience.

Explanation:

Selection of topic is one of the crucial stages of Speech preparation as one wrong topic may leave not only disappoint and mislead the audience but also the speaker itself. This process includes several stages beginning with the brainstorming of ideas and when it is informative speech analyzing the audience would help cater to the needs and demands of them. Thus, the process that Lucas has adopted is "analyzing the audience". It would give him a list of fair ideas to choose from and prepare an effective speech that would woo the audience. This process helps the speaker a variety of diverse topics and that assists them in selecting a topic that would encourage the reader's attention and interest of the speaker both.

answer; (external conflict)