This string could be a word, several words, or several characters. By default, no text is displayed. The following would set the size of the input blank to 16. The italic list of integers means that the author specifies a list of integers. They would remain in their given locations.
All question types support the feedback parameter.
This determines what feedback is given to the student when a question is submitted for correction. Feedback messages may explain anything marked as partially correct and may give correct answer information as well. No information is given. There is no partial information and no feedback message. High feedback not only tells the student what parts were answered correctly, but also gives away the correct answers.