, , , and and will get +1 mark; choosing ONLY n 1 = 1000

, and and will get +2 marks; choosing ONLY and will get +1 mark; choosing ONLY n 2 = 44

and n 3 = 220

. ONE OR MOER THAN ONE of these four option(s) is (are) correct answer(s). • For each question, choose the option(s) corresponding to (all) the correct answer(s). • Answer to each question will be evaluated according to the following marking scheme: Full Mark +4 If only (all) the correct option(s) is(are) chosen; Partial Marks +3 If all the four options are correct but ONLY three options are chosen; Partial Marks +2 If three or more options are correct but ONLY two options are chosen, both of which are correct; Partial Marks +1 If two or more options are correct but ONLY one option is chosen and it is a correct option; Zero Marks 0 If unanswered; Negative Marks -2 In all other cases. • For example, in a question, if are the ONLY three options corresponding to correct answers, then choosing ONLY will get +4 marks; choosing ONLY will get +2 mark; choosing ONLY will get +2 marks; choosing ONLY will get +1 mark; choosing no option(s) (i.e. the question is unanswered) will get 0 marks and choosing any other option(s) will get -2 marks. Let S 1 = {(U, k): i, j, k (1, 2,.....,10}}, S 2 = {(i, j): 1 i < j + 2 10, i, j {1, 2,....., 10}}, S 3 = {(i, j, k, l): 1 i < j < k < I, i, j, k, I (1, 2,....., 10}} and S 4 = |(i, j, k, l): i, j, k and I are distinct elements in (1, 2,....., 10}} If the total number of elements in the set S r is n r , r = 1, 2, 3, 4, then which of the following statements is(are) TRUE?