20. 1994 Gas Prices ograms for this book, you will find a text file named 1994 Weekly_Gas_Averages.txt. The file contains the average gas price for each week in the year 1994 (There are $2 lines in the file. Line 1 contains the average price for week 1, line 2 ads the gas contains the average price for week 2, and so forth.) Write a program that re prices from the file into an array or a vector. The program should do the following Display the lowest average price of the year, along with the week number for that price, and the name of the month in which it occurred. Display the highest average price of the year, along with the week number for that Display the average gas price for each month. (To get the average price for a given and the name of the month in which it occurred nth, calculate the average of the average weekly prices for that month.)