One of Mary and Jose's classmates agreed that the conditions for taking the survey were controlled, but she said that the result
s were not valid. How would you respond to this classmate? A) The student is correct; the experiment is not valid because it deals with opinions.
B) The student is incorrect: the experiment is valid because it measures what is says it measures.
C) The student is correct: the survey does not give respondents a chance to write in the preference.
D) The student is incorrect: the experiment is valid because it is consistent in its data collection methods.
