• # question_answer Fill the blank boxes. 19 J 17 H 15 F A) 13, D  B) 14, E C) D, 13                D) E, 14 E) None of these

Explanation: Option [a] is correct because numbers and letters take place alternately. Every next number decreases by 2. Let us see: $192=17$ $172=15$ $152=13$ If you see the letters, you find that every next letter take place skipping one letter in reverse order. Let us see: Rest of the options is incorrect because of the correctness of option [a].