Algorithm , Hello i need the correct answer with justification please

Question 10: The following array {1, 3, 5, 7, 12, 34, 55) is a.4-sorted b.3-sorted c. 7-sorted d. 1-sorted e.All answers are correct Question 11: Based on the Shell Sort algorithm provided in the slides, if the size of the array is 20, then the first value of h will be: a.13 b.4 c.19 d.7 e.None of the answers Question 12: The following sorting algorithm is in-place and stable: a.Selection Sort b.Insertion Sort c.Shell Sort d.Merge Sort e. None of the answers Question 13: Taking into account the worst-case scenario, the fastest algorithm we have covered is: a.Selection Sort b.Insertion Sort c.Shell Sort d.Merge Sort