Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are not sure, you must pick either a, b, c, or d without using any other words.
Options:
a.) CC(=O)CCc1ccccc1
b.) C#CC(C)(C)NC(=O)C=Cc1cc(OC)c(OC)c(OC)c1
c.) CNC(=O)Nc1nnc(C(C)(C)C)s1
d.) CC(=O)Nc1ccc(OCC(O)CNC(C)C)cc1
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}