While person-administered surveys were the industry mainstay,________ have grown to a dominant position in developed countries.
A)computer-administered survey methods
B)computer-assisted survey methods
C)self-administered survey methods
D)proxy-assisted survey methods

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The Answer of While person-administered surveys were the industry mainstay,________ have grown to a dominant position in developed countries.
A)computer-administered survey methods
B)computer-assisted survey methods
C)self-administered survey methods
D)proxy-assisted survey methods

While Person-Administered Surveys Were the Industry Mainstay,________ Have Grown to a Dominant