Flashcards should focus on: c. Both of these.
What is a question?
A question can be defined as a group of words or sentence that are developed, so as to elicit an information in the form of answer from a person such as a student.
This ultimately implies that, questions are primarily formulated by professionals to test the understanding of a person such as a student.
What is a flashcard?
A flashcard refers to a online-based card that comprises bits of information such as questions and answers that are typically designed and developed to test the understanding of a person such as a student. Thus, it should focus on both key points and bits of information.
Read more on flashcard here: https://brainly.com/question/558501
