Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any other words.
Options:
a: CC(O)CC=O
b: Nc1ncnc2[nH]cnc12
c: CC(Cc1ccc(C(C)(C)C)cc1)CN1CC(C)OC(C)C1
d: FC(F)(F)c1nc2c(Cl)cccc2[nH]1
e: NCCCNCCSP(=O)(O)O
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}