Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are not sure, you must pick either a, b, or c without using any other words.
Options:
a: C=C1c2c(Cl)ccc(O)c2C(=O)C2=C(O)C3(O)C(=O)C(C(N)=O)=C(O)C(N(C)C)C3C(O)C12
b: FC(F)(F)c1nc2c(Cl)c(Br)c(Cl)cc2[nH]1
c: COC(=O)Nc1nc2ccccc2n1C(=O)NCCCCCC#N
Answer: c
Task: Please answer the multiple choice question.
Question: Which molecule has the highest {acute_toxicity__names__noun}?
Constraint: Even if you are {#uncertain|not sure!}, you must pick either {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%acute_toxicity%}
Answer: {%multiple_choice_result}