I need help in these python questions very fast. Please do them correctly

Given the following Python code (Listing 4): 1 def q23 (astr): 2 "'' (str) -> (list of str)''' 3 countd = 1) 4 for item in astr: 5 if item in countd: 6 countd[item) += 1 7 else: 8 countd[item) = 1 9 10 countli = countd.values() 11 ct = max(countli) 12 13 mli = u 14 for item in countd: 15 if countd[item] == ct: 16 mli.append(item) 17 18 return mli DOWN teststr = 'aabbbc' When 923(teststr) is executed, the value of mli at line 18 is O ['b'] O ['a','b', 'c] none of these options O 12.3.1) O ['a': 2, "b: 3, 'c: 1) O b: 3) OWN Given the following Python code (Listing 4): 1 def 923 (astr): (str) -> (list of str)". countd = 1) for item in astr: if item in countd: countd[item] += 1 7 else: 8 countd[item) = 1 9 10 countli = countd.values() 11 ct = max(countli) 12 13 mli = ] 14 for item in countd: 15 if countd[item] == ct: mli.append(item) 17 18 return mli teststr = 'aabbbc' 16 Which line of code could substitute for lines 13-16? o o mli-[item[O] for item in countd] Omli - (item for item in countd] mli - (item for item in countd if countd[item) -- astr] none of these options. Omli - [item for item in countd if countalitem] -- ct] mli - [item[O] for item in countd if countd[item) -- ct] After the following Python code is executed (Listing 5): coursel = 'CIS 210 course2 = coursel coursel - coursel[:len(coursel)-1] + print (id (coursel) == id(course2)) print (coursel == course2) # checkpoint 1 # checkpoint 2 What will be printed at checkpoint 1? O None O False none of these options. O True