Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any additional words.
Options:
a: COCCOC(=O)C(=Cc1cccc([N+](=O)[O-])c1)C(C)=O
b: O=C1CCN(c2ccccc2)N1
c: Cc1ccc(C#N)cc1
d: CCCN(CCC)C(=O)C(CCC(=O)O)NC(=O)c1ccccc1
e: CCOC(=O)c1ccc(OC)cc1
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}