Agroup of 120 people were asked whether their income level is above or below $25,000 and whether they subscribe to a movie channel. the data from the survey is shown in the venn diagram. use the venn diagram to find the missing values in the frequency table. which shows the correct values for the variables in the table? a. a = 18, b = 34, c = 65 b. a = 34, b = 18, c = 68c. a = 34, b = 68, c = 47d. a = 47, b = 18, c = 68