The remaining coutries are either broader geopolitical areas rather than countries, or Taiwan (which is apparently recognized as a country by Meta but not World Bank). For simplicity, we will simply move on without these countries/areas. Now we can join! Use a [join] (https://dplyr. tidyverse. org/reference/mutate-joins.html) that only keeps countries that are in both data sets. The final data frame should have the columns "country", "total_population", "aware_no", `aware_alittle", "aware_moderate , "aware_alot, and 'aware_refuse . "{r aware_pop, error=TRUE} # YOUR CODE HERE aware_pop