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 additional words.
Options:
a CC(C)=C1C(=O)N(c2ccccc2)N(c2ccccc2)C1=O
b CC(C(=O)O)c1cccc(C(=O)c2ccccc2)c1
c CCCSC(=O)Oc1c(C(C)CC)cc([N+](=O)[O-])cc1[N+](=O)[O-]
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}