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) COP(=S)(Oc1ccc([N+](=O)[O-])c(C)c1)OC(C)C
(b) CC(C)Cc1ccc2ccccc2n1
(c) CC(=O)OCCOc1ccccc1
(d) CN(Cc1ccc(Cl)cc1Cl)S(N)(=O)=O
(e) O=P(Oc1ccccc1)(Oc1ccccc1)OC1CCCCC1
Answer: b
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}