Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, or c without using any additional words.
Options:
(a) Nc1ncnc2c1ncn2C1OC2=CC(C(=O)O)(C(O)C(=O)O)OC2C1O
(b) Nc1ccc2c(S(=O)(=O)O)cccc2c1S(=O)(=O)O
(c) COC(C=Cc1ccccc1)OC
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}