Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any additional words.
Options:
a) Nc1ncnc(Nc2cccc(Cl)c2)n1
b) O=C(O)c1cccc(Cl)n1
c) Cc1c(C(=O)N(C)C)nnn1-c1ccccc1
d) CS(=O)C(C)(C)CO
e) CCC(CCCCOC(=O)c1ccccc1)COC(=O)c1ccccc1
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}