Sagot :
Answer:
LETTER C
Step-by-step explanation:
A questionnaire is a set of questions typically used for research purposes which can be both qualitative as well as quantitative in nature. A questionnaire may or may not be delivered in the form of a survey, but a survey always consists of questionnaire.
A survey is a sophisticated quantitative research method comprised of questionnaire with the intention of efficient gathering of data from a set of respondents. A survey mainly consists of closed ended questions with very few open ended questions for free form answers.