An engineering firm is hired to determine if certain waterways are safe for fishing. Samples are taken from three rivers. Complete parts (a) through (c) below.(a) List the elements of a sample space S, using the letters F for safe to fish and N for not safe to fish.A. S = (FFF, FFN, FNF, FNN, NFF, NFN, NNF, NNN}B. S = (FFF, NNN)C. S= (F, N. FF, FN, NF, NN, FFF, FFN, FNF, FNN, NFF, NFN, NNF, NNN)D. S=(FFF, FFN, FNN, NNN)