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] CC(Cc1ccccc1)NC(=O)Cn1nc(-c2ccccc2)ccc1=O
[b] C=CCCC(=O)O
[c] N#CC(Cl)Cl
[d] CCP(=S)(OCC(C)C)SCN1C(=O)c2ccccc2C1=O
[e] C=COCCOCCOC=C
Answer: b
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}