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, d, or e without using any additional words.
Options:
a.) CC(C)NCC(O)COc1cccc2[nH]ccc12
b.) CC1CC=CCC1C=O
c.) CC12CCC(=O)C=C1CCC1C2CCC2(C)C1CCC2(C)O
d.) CCOP(=S)(OCC)Oc1ccc(=O)n(-c2ccccc2)n1
e.) O=c1[nH]cc(F)c(=O)[nH]1
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}