Figure 3.1 shows an incomplete C++ program. Refer to the figure and answer question 3(a) (). Write the complete program. int main() { Person p; . cout > p.age; cout > p.salary; // Function call with structure variable // as an argument displayData(p); return 0; Figure 3.1 d. Write a code segment to define struct Person (5 marks) b. Write function definition of displayData() (5 marks) c. Modify function main() to input 50 data of type Person