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, c, d, or e without using any additional words.
Options:
a.) Fc1ccc(SCc2ccc(Cl)cc2)cc1
b.) CN(C)c1ccncc1
c.) CCCCN1C(=O)c2cccc([N+](=O)[O-])c2C1=O
d.) CC1NC(=O)c2cc(N)ccc2O1
e.) CC1OC(OC2C(C)OC(OC3C(C)OC(OC4CCC5(C)C(CCC6C5CCC5(C)C(C7=CC(=O)OC7)C(OC=O)CC65O)C4)CC3OC=O)CC2OC=O)CC(OC=O)C1OC=O
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}