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] Cc1ccccc1N(CCO)CCO
[b] CCOP(C)(=S)NOc1cccc2ccccc12
[c] Cc1ccc(C)c(CCNC(N)=O)c1
[d] C#CCOP(=O)(OCC(C)C)c1ccccc1
[e] Cc1cccc([N+](=O)[O-])c1[N+](=O)[O-]
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}