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] CCC(OC(N)=O)c1ccccc1Cl
[b] O=C(O)C(Cc1cc(I)c(O)c(I)c1)c1ccccc1
[c] NNC(=O)CSc1cc(Oc2ccc(Cl)cc2)ncn1
Answer: a
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}