The monthly expenditures on food by single adults living in one neighborhood of Los Angeles are normally distributed with a mean of $370 and a standard deviation of $100. Determine the K percentage of samples of size 4 that will have mean monthly expenditures on food within $90 of the population mean expenditure of $370. Round to two decimal places. O A. 92.82% O B. 63.18% O C. 96.41% O D. 46.41%