Question 4 (10 points) Which of the following is the correct output from this sequence of statements? letters = ['a', 'b', ['c , d', ['e', 'f']], '9'] print (len (letters [ 2] ) ) 1 6 3 4 Question 5 (10 points) Which of the following is the correct output from the following sequence of statements? halves = [2 .0, 1. 0, 0.5, .25, .125] halves [-5] = 0 print (halves [1]) 2.0Question 8 (10 points) Which of the following is the correct output from this sequence of statements? arrayl = [1, 2, 3] array2 = [2, 3] print ( (arrayl + array2) * 2) [1 , 2, 3, 2, 3, 2, 3] O [ 1 , 2, 3, 2, 3] O [ 1, 2, 3] O [1, 2, 3, 2, 3, 1, 2, 3, 2, 3] Question 9 (10 points) Which of the following is the correct output from this sequence of statements? digits = ['1', '2', '3', '4', '5', '6'] digits . remove ( '2' ) third = digits . pop (3) print (digits)Question 10 (10 points) Which of the following for loops will compute the sum of all the elements in the array numbers, assuming numbers has already been assigned a collection of numeric values? O sum = 0 for i in range (len (numbers) ) : sum - sum + i sum = 0 for i in range (len (numbers) ) : sum - sum + numbers [i] O sum = 0 for i in range (numbers) : sum = numbers [i] O sum = 0 for i in range (len (numbers) ) : sum = numbers [i]Question 6 (10 points) Which of the following programs will output [ 'X' , 'Y' , 'x' , 'y' ]? Oletters = ['x' , 'y'l letters . append ( [ 'X' , 'Y' ]) B letters . sort ( ) print (letters) Oletters = ['x' , 'y'l letters . append ( 'X ' , 'Y') letters . sort ( ) print (letters) Oletters = ['x', 'y'l letters . extend ( ['X' , 'Y'l) letters . sort () print (letters) Oletters = ['x' , 'y'] letters . extend ( 'X' , 'Y' ) letters . sort () print (letters) Question 7 (10 poQuestion 9 (10 points) Which of the following is the correct output from this sequence of statements? digits = ['1', '2', '3', '4', '5', '6'] digits . remove (' 2' ) third = digits. pop (3) print (digits) ['1' , '2', '5', '6' O 1'2' , '4', '5', '6' Ol'1', '3', '4', '6' Ol'1', 12', 14', '6' Question 10 (10 points) Which of the following for loops will compute the sum of all the elements in the array numbers, assuming numbers has already been assigned a collection of numeric values?Question 7 (10 points) Which of the following is the correct output from this sequence of statements? numbers = [1, 2, 3, 4, 5 numbers [ 2 : 4] = [4, 3] print (numbers [1 : 3]) O [ 2 , 3] O [ 2, 4] O [ 2 , 4 , 3] O [ 2, 3 , 4 ] Question 8 (10 points) Which of the following is the correct output from this sequence of statements? arrayl = [1, 2, 3] array2 = [2, 3]