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 other words.
Options:
a N#CC(F)(F)C(F)(F)C(F)(F)C(F)(F)C#N
b C=C(F)CCl
c O=C1CN(N=Cc2ccc([N+](=O)[O-])o2)C(=O)N1
d O=Cc1ccc2c(c1)OCO2
e CC(=O)NNC(=O)c1ccccn1
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}