Your Head of Department Asks You to Administer a Survey

Multiple Choice

Your head of department asks you to administer a survey to undergraduates about teenage pregnancies.You believe that male and female students might react differently to the survey questions as they are deliberately provocative.The male and female students are randomly assigned in turn to two separate groups.One of the two groups is asked the provocative questions and the other group are asked less provocative ones as a 'placebo'.Based on the above information,what has happened to the design of the study?

A) It is completely randomized.
B) It is blocked by gender.
C) It is completely randomized,and blocked by gender.
D) It is a matched-pairs design.