Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any other words.
Options:
a CCN(CC)c1nc(NC(C)C)nc(OC)n1
b Cc1ccccc1-n1c(C)nc2ccc(N)cc2c1=O
c OCC(O)C1OC2OC(C(Cl)(Cl)Cl)OC2C1O
d CN1C2CCC1CC(OC(=O)C(CO)c1ccccc1)C2
e Cc1nccnc1C
Answer: d
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}