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 additional words.
Options:
a: CC(=O)Nc1ccc(CC(=O)O)cc1
b: COC(=O)C1=CCCN(C)C1
c: CCOP(=S)(OCC)OC(=CCl)c1cc(Cl)ccc1Cl
d: CN(C)N=Nc1ccc(Br)cc1
e: CCCC(=O)Oc1ccc(OC)cc1
Answer: e
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}