Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity rat LD50?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any additional words.
Options:
a) COCc1cc(C(C)(C)C)c(O)c(C(C)(C)C)c1
b) Cc1c([N+](=O)[O-])cccc1[N+](=O)[O-]
c) Cc1ccc(C(=O)O)cc1
d) CCCCOc1ccccc1NC(C)=O
e) CC(=O)c1cccc(N)c1
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}