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#CCN(C)Cc1ccccc1
[b] CCOC(=O)CCN(Cc1ccccc1)SN(C)C(=O)ON=C(C)SC
[c] CC(=O)Oc1ccc(C2(c3ccc(OC(C)=O)cc3)Oc3ccccc3NC2=O)cc1
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}