int Marks [20]= { 70,85, 60, 55,90,100,50); For the above code, answer the following questions in the space provided below: 1. Find the size of Marks array. 2. How many number of elements are present in Marks array ? 3. Find the index value for last element in array 4. Find the index value for the element 60 5. Find the value of Marks[2] + Marks[Oj in Marks array