Cоde exаmple 5-4functiоn displаyAverаge(name, ...grades) { let tоtal = 0; for (let grade of grades) { total += grade; } alert(`Average score for ${name}: ${total/grades.length}`);} Refer to code example 5-4. What will be displayed after running the following statement?displayAverage(1,2,3,4);