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, or c without using any additional words.
Options:
a: CCCN(CCC)C(=O)C(Cc1ccc(OCCN(CC)CC)cc1)NC(=O)c1ccccc1
b: Cn1ccc(=NC(=O)c2ccccc2O)n1-c1ccccc1
c: CCOC(=O)CSP(=S)(OCC)OCC
Answer: c
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}