Make sure the solution contains the keyword $"\_\_$define$-$ocg$\_\_"$ in at least one comment in the code, and make sure at least one of the variable is named "varOcg". Have the function StringChallenge$($str$)$ take the str parameter being passed and modify it using the following algorithm. Replace every letter in the string with the letter following it in the alphabet $($ie$.$ c becomes d$,$ z becomes a$).$ Then capitalize every vowel in this new string $($a$,$ e$,$ i$,$ o$,$ u$)$ and finally return this modified string.Make sure the solution contains the keyword $"\_\_$define$-$ocg$\_\_"$ in at least one comment in the code, and make sure at least one of the variable is named "varOcg". Have the function StringChallenge$($str$)$ take the str parameter being passed and modify it using the following algorithm. Replace every letter in the string with the letter following it in the alphabet $($ie$.$ c becomes d$,$ z becomes a$).$ Then capitalize every vowel in this new string $($a$,$ e$,$ i$,$ o$,$ u$)$ and finally return this modified string.