I would say the word could be reliable in other words that the sources of the information are reputable and with a proven track record so that the information can give confidence that it is legitimate and not rigged or sham.
By simplifying work and increasing output per worker is this approach to job design most likely to help Clean N Green
Explanation:
Job design is the organisation of work into the tasks necessary to perform a certain task. Job design includes conscious efforts to organise tasks, assignments and duties into some kind of unit of work to reach certain goals.
It is achieved by facilitating specialisation across simplified work, which in turn increases efficiency.
Due to the fact that job simplification makes employment routine, monotonous and boring, workers are eventually disliking the job, thereby increasing absenteeism and turnover.
It is with utmost importance that you take into consideration the level of education that majority of your audience has. If your topic is on artificial robotic intelligence, it would mean that you will deliver some technical jargon or discuss some complex concepts. You have to see whether the audience can follow along with your informative speech and adjust the pacing if necessary in order to convey information efficiently.
I say C makes the most since in the sentence