c++. Please answer the question properly.

You are given the following data structure: struct final { unsigned short grade1; string questioni, question2; unsigned short grade2, grade3; string question3; }; Complete the following function, in which you will return the overall grade as the sum of each grade. unsigned short calculateOverallgrade(final* f) { // write code here } Value: 5/100 How would you change the data structure in Question 2 to optimize its size in memory? And why