Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are not sure, you must pick either a, b, or c without using any other words.
Options:
a: Cn1c(=O)c2c(ncn2CC(=O)O)n(C)c1=O
b: C=CCOc1ccc(C2=C(c3ccccc3)C(C)(C)Oc3cc(OC)ccc32)cc1
c: CC(O)Cn1cnc2c1c(=O)n(C)c(=O)n2C
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}