Answer:
closed questions are questions with fixed answer options
A. Closed questions allow the respondent to go in-depth with their answers.
- no, it is relevant to open questions
B. It is possible to automate the collection of results for closed questions.
C. Closed questions allow for new solutions to be introduced.
- no, it allows to collect statistical data but not good for new solutions, it better works with open questions when new ideas, solutions may appear
D. It is easy to quantify and compare the results of surveys with closed questions.