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 additional words.
Options:
a: CC(Cc1ccccc1)(NC(=O)CN)c1ccccc1
b: CC(C)=NNC(=O)CSc1cc(Oc2ccc(Cl)cc2)ncn1
c: CCC(C)(C)c1ccc(Cl)c(OC(=O)NC)c1
d: O=C=NCc1ccc(CN=C=O)cc1
e: NCCOC(=O)c1ccccc1
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}