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(=O)CC(=O)Nc1ccc(Cl)cc1C
b. CC(=O)c1ccc(C)cc1
c. CCOc1ccc(NCCC#N)cc1
d. CNC(C)C(O)c1ccccc1
e. Oc1ccc2ccccc2c1Cl
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}