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(C)(C)c1ccccc1
b CCC(C)NCC(O)c1ccc(N)cc1
c CCOP(=S)(CC)Oc1ccc([N+](=O)[O-])cc1Cl
d CC(N)C(O)c1cccc(O)c1
e CC(C)COC(=O)C(C)Oc1ccc(Oc2ccc(Cl)cc2)cc1
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}