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.) c1ccc2c(c1)ncn2P(n1cnc2ccccc21)n1cnc2ccccc21
b.) CCOC(=O)c1cnc2cc(OCC3CC3)c(OCC3CC3)cc2c1O
c.) O=C1OC(C(O)CO)C(O)=C1O
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}