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, c, or d without using any other words.
Options:
a.) Cc1ccc(Cc2ccc(C)cc2)cc1
b.) Cc1ccccc1C(=O)Nc1cccc(OC(C)C)c1
c.) CC(O)(c1ccc(Cl)cc1)c1ccc(Cl)cc1
d.) O=C(O)Cc1ccc2c(c1)OCc1ccccc1C2=O
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}