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, c, or d without using any other words.
Options:
a) CCNP(=S)(OC)Oc1cc(Cl)c(Cl)cc1Cl
b) Oc1cccc(Cl)c1
c) COC(OC)c1ccccc1
d) COP(=O)(OC)OC(C)=CC(=O)Oc1ccc(C)cc1
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}