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, or d without using any additional words.
Options:
a: CC1CN(C(=O)Cn2c(=O)sc3ccccc32)CC(C)O1
b: CC1CN(C(=O)Cn2c(=O)sc3ccccc32)CC(C)O1
c: CCC(=O)C(CC(C)N(C)C)(c1ccccc1)c1ccccc1
d: O=c1nc2[nH]c(=O)[nH]cc-2[nH]1
Answer: a, b
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}