Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any other words.
Options:
a: CCC(C)Cn1c(=O)n(C)c(=O)c2[nH]c(C)nc21
b: CC(C)(c1ccc(O)cc1)c1ccc(O)cc1
c: COc1ccc(OC)c(NC(=O)CNC(=O)Cc2ccc(C(=O)c3ccc(C)cc3)n2C)c1
d: CCNc1nc(Cl)nc(NC(C)(C)C)n1
e: O=C(OCC1CO1)c1ccccc1
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}