D Question 24 2 pts We have a data frame in R called "data", with 3 variables and 3 observations shown below as it would appear in the R console (note the first "column" of 1,2,3 are just the observation number and are not part of the dataset). vari var2 var3 3 A W W W What would the R call "data$var1 - data$var3" return? (In other words, if you typed data$var1 - data$var3 at the console what would be the output?) Edit View Insert Format Tools Table 12pt Paragraph B I U A Q V T V