Simon is giving a speech on Time Management. He starts his speech by saying, "Every one of you must have come across days when you had to race against time, or perform inadequately due to lack of time. This speech should give you ideas on how to manage time." In this scenario, Simon’s opening sentence serves the purpose of:

A. a listener relevance link.
B. appealing to action.
C. establishing credibility.
D. a signpost.

A -listeners relevant link

Explanation:

As a rule of thumb making an effective speech entails your connecting to your audience to identify their struggles, in order words -you are putting yourself in their position and makes them know that what they about to hear is a probable solutions to their struggle and this solution is attainable [not rocket science].

With this, the listener develops a zest for the topic been talked about and he/she gives it maximum attention.

the answer is a. or c.

a factory opens that mass-produces light bulbs.

explanation:

not sure if that's an answer to your questions but this is an example! : )