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, or d without using any additional words.
Options:
(a) C[n+]1cccc(C(=O)[O-])c1
(b) O=[N+]([O-])c1cc2c(ccc3ccccc32)o1
(c) CN(CCCn1cnc2c1c(=O)n(C)c(=O)n2C)c1ccccc1
(d) COC(=O)C1C2C=CC(C2)C1C(=O)OC
Answer: c
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}