Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are not sure, you must pick either a, b, or c without using any other words.
Options:
a) N#CSc1ccc(C(=O)O)cc1
b) CCOP(=S)(OCC)SCSc1cc(Cl)ccc1Cl
c) CC1(C)C(C=C2CCCC2)C1C(=O)OCc1coc(Cc2ccccc2)c1
Answer: 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}