[" 53.How many different words can be formed by jumbling "],[" the letters in the word MISSISSPI in which no two S "],[" are adjacent? "],[[" 1) "6.7.^(@)C_(4)," 2) "6.8.^(7)C_(4),],[" 3) "7^(*)C_(4)*^(8)C_(4)," 4) "8.^(@)C_(4)*^(7)C_(4)]]