Which of the following isotopes is the most likely X in the reaction 92/236 U → 36/92 K r + 3 n + X 92 236 U→ 36 92 Kr+3n+Xstart subscript, 92, end subscript, start superscript, 236, end superscript, U, right arrow, start subscript, 36, end subscript, start superscript, 92, end superscript, K, r, plus, 3, n, plus, X, where n nn denotes a free neutron? Choose 1 Choose 1 (Choice A) A 57 142 L a 57 142 Lastart subscript, 57, end subscript, start superscript, 142, end superscript, L, a (Choice B) B 57 143 L a 57 143 Lastart subscript, 57, end subscript, start superscript, 143, end superscript, L, a (Choice C) C 56 142 B a 56 142 Bastart subscript, 56, end subscript, start superscript, 142, end superscript, B, a (Choice D) D 56 141 B a 56 141 Ba