La putrescina, un producto de la descomposición de la carne contiene 54.50% de Carbono, 13.72% de Hidrógeno y 31.78% de N

There is no reason to think the results are biased or not conducted properly but you should not assume the results are correct just because they were done in a laboratory so the answer would be c. it is likely to be reliable because the results support the conclusion presented.