Answer:
D). Teach people.
Step-by-step explanation:
Technical non-fiction is exemplified as the genre that proposes the reliable and accurate information(according to the author). Such genre includes the depiction of authentic real-life events or factual details with an aim to either inform or 'teach people'. However, the information proposed could be accurate or not but the author claims and promises it to be the trustworthy and credible through presenting sufficient evidences to substantiate his/her claim. Thus, option D is the correct answer.