Answer:
The correct answer is the option 2: Conduct an informal survey.
Explanation:
In order to obtain a variety of ideas from your coworkers and to also try to understand what they might think about certain ideas then the perfect technique to use is an informal survey where the person can establishes questions in order to obtain informal information about what the majority of the other workers think. Therefore that conducting a survey will facilitate the fact of understanding everybody's opinion about the particular subject.