An internet provider wanted to find out what percentage of people in the U.S. receive their internet service via satellite. They conducted an internet poll that asked people to identify whether they receive their internet from satellite or from another source. 45% of the respondents said that they receive internet via satellite. The actual percentage of people in the U.S. that receive internet through a satellite provider is 24%. Which type of error explains this discrepancy?
A. nonsampling error
B. sampling error
C. blinding error
D. confounding