Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any other words.
Options:
a) O=[N+]([O-])c1ccc(OP(=O)(OCCCCl)OCCCCl)cc1
b) Cc1ccc(C)c(C)c1C
c) COP(=S)(OC)Oc1ccc(S(N)(=O)=O)cc1
d) O=C(COc1ccc(Cl)cc1Cl)OCC=CCCl
e) C=C(CC)C(=O)c1ccc(OCC(=O)O)c(Cl)c1Cl
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}