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) CCn1nc(C(=O)O)c(=O)c2cc3c(cc21)OCO3
b) CC(C)C(Br)C(=O)OC(C)C(Cl)(Cl)Cl
c) COC(C)N(C)N=O
d) CC(C)OC(C)C
e) COC(=O)CC(SP(=O)(OC)OC)C(=O)OC
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}