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, d, or e without using any other words.
Options:
a.) C=C(Cl)COP(C)(=S)Oc1ccc([N+](=O)[O-])c(C(F)(F)F)c1
b.) O=C(Cl)OCc1ccccc1
c.) CC1OC(n2cc(F)c(=O)[nH]c2=O)C(O)C1O
d.) CCOP(=O)(OCC)Oc1ccc([N+](=O)[O-])cc1
e.) COP(=S)(OC)Oc1ccc(Cl)c([N+](=O)[O-])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}