Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any additional words.
Options:
a) CCOC(C1=NCCCN1)c1cccc(F)c1
b) CCC(C)C(CN(C)C)c1ccc(OC)c(Cl)c1
c) CN(C)N=Nc1ccc([N+](=O)[O-])cc1
d) CNC(=O)Oc1ccc(O)c2ccccc12
e) COc1ccc2c(c1OC)C13CCN(C)C(C2)C1(O)CCC(O)C3
Answer: c
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}