Final answer:
B. Inform, enlighten is the correct answer as informative texts are designed to educate and provide factual information to the reader, unlike persuasive or entertaining texts which aim to convince or amuse.
Step-by-step explanation:
The primary purpose of texts written to inform is to enlighten the reader or provide the reader with information about a topic. Therefore, the answer to the student's question is: The primary purpose of texts written to inform, is to enlighten the reader or provide the reader with information about a topic. This signifies that the correct answer is B. Inform, enlighten.
When defining the purpose of any text, it's essential to identify whether the writing is intended to inform, persuade, or entertain the audience. Informative writing is distinguished by its aim to educate and provide factual information to readers, helping them to understand and think critically about a subject. Examples of informative writing include textbooks, news articles, and speeches designed to explain or describe details about a topic.
Persuasive writing, on the other hand, seeks to convince the audience to adopt a new belief or behavior. Lastly, writing with the intent to entertain, uses elements such as humor to connect with an audience, but it isn't primarily focused on enlightening in the way that informative texts are.