Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, or c without using any other words.
Options:
[a] C=C1CC(=CC)C(=O)OC2CCN3CC=C(COC(=O)C1(C)O)C23
[b] CC1(C)C(C=C(Cl)Cl)C1C(=O)OCc1c(F)c(F)c(F)c(F)c1F
[c] CN(C)C(=O)C(CC[N+]1([O-])CCC(O)(c2ccc(Cl)cc2)CC1)(c1ccccc1)c1ccccc1
Answer: b
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}