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: CC1=NN(c2ccccc2)C(=O)C1
b: OC1CCc2ccccc2C1
c: COc1ccc2c(c1)c(CC(=O)Oc1cccc(C)c1)c(C)n2C(=O)c1ccc(Cl)cc1
d: CCP(=S)(OC)SCn1c(=O)oc2cc(Cl)cnc21
e: CCNc1nc(NC(C)C(C)C)nc(SC)n1
Answer: e
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}