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) CN(C)C(=O)Oc1ccccc1C1SCCS1
(b) O=[N+]([O-])c1ccc(-c2ccccc2)cc1
(c) Cc1ccc(N=CN(C)SN(C)C=Nc2ccc(C)cc2C)c(C)c1
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}