Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, or d without using any additional words.
Options:
a) COCCCNc1nc(NCCCOC)nc(SC)n1
b) OC(c1ccc(Cl)cc1)(c1cncnc1)c1ccccc1Cl
c) OC(c1ccc(Cl)cc1)(c1ccc(Cl)cc1)C(Cl)(Cl)Cl
d) CNc1nc(Cl)nc(NC(C)C)n1
Answer: d
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}