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) CCOC(=O)NNc1nncc2ccccc12
(b) O=[N+]([O-])c1ccc(C=NNC(=S)N2CCCCC2)o1
(c) O=C1NC(=O)C(c2ccccc2)(c2ccccc2)N1S(=O)(=O)c1ccccc1
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}