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 additional words.
Options:
a) CCOC(C1=NCCCN1)c1ccc(Cl)cc1
b) Cc1cc(O)c(C(C)(C)C)cc1C
c) CCCCCCOC(=O)C(O)c1ccccc1
d) Cc1cc(Cl)cc(O)c1O
e) O=C(NC(CO)C(O)c1ccc([N+](=O)[O-])cc1)C(Cl)Cl
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}