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 other words.
Options:
a.) N=C(NN=Cc1ccc(Cl)cc1)NN=Cc1ccc(Cl)cc1
b.) CN1CCN(CCC=C2c3ccccc3Sc3ccc(S(=O)(=O)N(C)C)cc32)CC1
c.) Cc1nc([N+](=O)[O-])cn1-c1ccc([N+](=O)[O-])cc1
d.) Clc1ccc(C(Cn2ccnc2)OCc2ccsc2Cl)c(Cl)c1
e.) CN(C)c1ccc(C(=N)c2ccc(N(C)C)cc2)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}