Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are uncertain, you must pick either a, b, or c without using any other words.
Options:
a) CCOC(=O)C(C#N)C(=O)Cc1c(C)n(C(=O)c2ccc(Cl)cc2)c2ccc(OC)cc12
b) O=C1C2CC=CCC2C(=O)N1SC(Cl)(Cl)Cl
c) [O-][N+]1=NC2CC1C1C2C2(Cl)C(Cl)=C(Cl)C1(Cl)C2(Cl)Cl
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}