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, or d without using any other words.
Options:
a.) CC(C)=CCCC(C)=CCCC(=CCCC(C)=CCO)CO
b.) C=COCCCl
c.) CCOP(=S)(OCC)ON1C(=O)c2cccc3cccc(c23)C1=O
d.) O=C1CN=C(c2ccccc2Cl)c2cc(Cl)ccc2N1
Answer: d
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}