Please write the matlab code for the following problem

Problem 1 a. Write a for loop to add numbers from 0 to 20 b. Modify your for loop to use an If statement to add only even numbers from 0 to 20. c. Array -write a for loop to generate a 1D array holding the elements 0 to 20 d. Use the function Sum to add all the elements of the array from (c) -the answer should agree with part a