Question: 16
(Choose 1 answer)
Why is it challenging to conduct a holistic evaluation of effectiveness and efficiency of a search engine?
A. Because effectiveness and efficiency are not important factors in search engine evaluation
B. Due to the limited number of factors that affect effectiveness and efficiency
C. Because the search environment involves various users and factors like interface design, query refinement
techniques, and more
D. Because holistic evaluation can be easily controlled and conducted in tightly defined experimental settings
