Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any other words.
Options:
a.) N#Cc1ccccc1C#N
b.) CCCSP(=O)(OCC)Oc1c(Cl)cc(Cl)cc1Cl
c.) CCOP(=S)(OCC)Oc1ccc([N+](=O)[O-])c(C)c1
d.) Nc1ccc(S(=O)(=O)O)c2cccc(S(=O)(=O)O)c12
e.) CCCCCOC(CBr)c1ccc(C(C)C)cc1
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}