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) NC(=O)NCc1ccccc1
b) O=[N+]([O-])c1ccc2ccccc2c1
c) O=COCC=Cc1ccccc1
d) CCCCOC(=O)COC(=O)COc1ccc(Cl)cc1Cl
e) CCC(C)c1cc([N+](=O)[O-])cc([N+](=O)[O-])c1OC(C)=O
Answer: a
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}