Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any additional words.
Options:
a. O=[N+]([O-])c1ccccc1O
b. ClC(Cl)(Cl)c1cccc(C(Cl)(Cl)Cl)c1
c. COc1ccc2cc(CCC(C)=O)ccc2c1
d. COc1cc(C#N)ccc1OP(=S)(OC)OC
e. COC(=O)c1cc([N+](=O)[O-])ccc1Cl
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}