Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are not sure, you must pick either a, b, c, or d without using any additional words.
Options:
a.) CCOC(=O)C(CC(C)C)NC(=O)C(Cc1ccc(N(CCCl)CCCl)cc1)NC(C)=O
b.) O=C(Cc1ccc(O)c(O)c1)c1ccc(O)c(O)c1O
c.) COP(=S)(OC)Oc1cc(Cl)c(Cl)cc1Cl
d.) Cc1cc(C(C)(C)C)c(O)c(C(C)(C)C)c1
Answer: d
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}