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) Cn1c(=O)c2c(ncn2CC(=O)O)n(C)c1=O
(b) O=C(OCC(O)C1COc2ccccc2O1)N1CCOCC1
(c) CCCCCCCCOC(CBr)c1ccc(C2CCCCC2)cc1
(d) CCOC(=O)c1c(C)cc2c(CO)n[nH]c(=O)c2c1C
(e) COC(=O)C1C2CC3c4[nH]c5cc(OC)ccc5c4CCN3CC2CC(OC(=O)c2cc(OC)c(OC)c(OC)c2)C1OC
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}