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 additional words.
Options:
[a] C=C(Cl)C(OC(C)=O)OC(C)=O
[b] Cc1nc(N)cc(SCc2ccc[n+]([O-])c2)n1
[c] COC(=O)Nc1cccc(OC(=O)Nc2cccc(C)c2)c1
Answer: a
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}