Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any additional words.
Options:
[a] O=[N+]([O-])OC1COC2C(O)COC12
[b] Oc1ccc(-c2ccccc2)cc1CN1CCCCC1
[c] CC1=NN(c2ccc(C)cc2)C(=O)C1
[d] O=C1OC(C(O)CO)C(O)=C1O
[e] c1nc(NC2CC2)c2ncn(C3CC3)c2n1
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}