(e) Here the basic requirement is that “number of days required” and “number of days required for background research” should be ≤ 10.“Number of days required” :option (a) : 3 + 5 + 3 = 11 daysoption (c) : 3 + 5 + 4 = 12 daysHence, these options are ruled out.“Number of days required for background research” in option (b) : 3 + 5 + 3 = 11 days.