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Select the statements below which are true regarding population and sample regression. C] If multiple samples from the same population are used to generate their own respective regression line, we would not expect their regression lines to be exactly the same. C] A regression line that does not come in contact with a_nv of the points from the sample has an R2 of zero. C] The sample regression line created through the a valid sample with a large enough sample size (n > 30) will exactly equal the regression line of the entire population. C] Even if sampling is done properly, we may experience variation in the slopes of sample regression lines from different samples from the same population. C] A line of best fit can still be used even if all the sample points lie above it