Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (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: NNC(=O)CSc1cc(Oc2ccccc2)ncn1
b: Cc1cccc([N+](=O)[O-])c1
c: CCCCOCCCOC(=O)COc1ccc(Cl)cc1Cl
d: COC(=O)c1ccccc1C(=O)OC
e: O=COCC=Cc1ccccc1
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}