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.) Cc1ccc2nc3sc(=O)sc3nc2c1
b.) CCOCC(O)(c1ccc(Cl)cc1)c1ccc(Cl)cc1
c.) c1nc(NC2CC2)c2ncn(C3CC3)c2n1
d.) c1ccc(N(c2ccccc2)c2ccccc2)cc1
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}