Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any other words.
Options:
a) C(Oc1nc(OCC2CO2)nc(OCC2CO2)n1)C1CO1
b) CCNc1nc(Cl)nc(N(CC)CC)n1
c) O=NN1CCSC1
d) CCN1CC2CN(C)CC(C1)C2OC(=O)c1ccc(Cl)cc1
e) O=c1[nH]ncc2ccccc12
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}