Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any other words.
Options:
a: CCCCCCc1ccc(O)cc1O
b: COP(=O)(OC)OC(=CCl)c1cc(Cl)ccc1Cl
c: CCOP(=S)(OCC)Sc1ccc(C)cc1
d: CC(C)(C)C(O)(CCc1ccc(Cl)cc1)Cn1cncn1
e: FC(F)=C(F)c1ccccc1
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}