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 additional words.
Options:
a CCN(CC)C(=O)c1ccccc1
b CCC(C)OC(CBr)c1ccccc1
c Nc1c(Cl)cc(Cl)cc1C(=O)O
d CS(=O)(=O)c1ccc(CN(CCO)C(=O)C(Cl)Cl)cc1
Answer: c
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}