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, d, or e without using any additional words.
Options:
a.) NCCCCC(CN)CCCN
b.) O=C(O)CCC1(CCC(=O)O)c2ccccc2-c2ccccc21
c.) OCCNCCO
d.) CC1OP(=S)(Cl)OC2CCCCC12
e.) CCC1(CC)COC(=O)NC1=O
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}