Methods of Questionnaire Administration Rank as Follows in Terms of Time

Multiple Choice

Methods of questionnaire administration rank as follows in terms of time required to collect the data (quickest to slowest) :

A) personal interviews,web-based surveys,telephone surveys,mail surveys.
B) web-based surveys,telephone surveys,personal interviews,mail surveys.
C) web-based surveys,mail surveys,telephone surveys,personal interviews.
D) mail surveys,personal interviews,telephone surveys,web-based surveys.
E) None of these are correct because all methods take about the same amount of time.