QUESTION 1 A. Write JavaScript statements to accomplish each of the following tasks a) do...while structure: 0, 4, 8, 12, 16, 20, ..., 80 b) for structure: 100, 95,90, 85, 80, 75, ..., 5 c) while structure: 1, 3, 8, 10, 15, 17, 22, 24,29, 31, 36, 38 d) for structure: 20, 21, 22, 24, 26, 27, 28, 30 B. Write a JavaScript to generate output below 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 2 3 4 5 3 4 5 1 2 3 4 5 4 3 2 0 3 21 0 1 2 1 0-2 1 0 23 3 4 5 6 7 Write a JavaScript that prompts the user for the radius of a sphere, uses a function sphereVolume to calculate the volume of a sphere, and prints the volume and diameter of a sphere Write a JavaScript function named numKeyPad that return a number based on an input letter received that found on the telephone as shown in below: (Using switch statement) ABCDEF GHI JKL MNO PQRSTUVWXYZ