int GRADE [50]= { 80, 60, 40, 55, 90, 100,50 }; For the above code, answer the following questions 1) Find the size of GRADE array. ii) How many number of elements are present in GRADE array ? 111) Find the index value for last element in array iv) Find the index value for the element 100 v) Find the value of GRADE (2] + GRADE [0] in GRADE array