R code, library(nycflights13), flights dataset

i)Brainstorm as many ways as possible (at least three) to select dep_time , dep_delay, arr_time, and arr_delay from flights**. ii) What happens if you include the name of a variable multiple times in a select() call? Don't forget to give an example**. iii) Does the result of running the following code surprise you? How do the select helpers deal with case by default? How can you change the default?**