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 other words.
Options:
(a) CC(CO)Oc1ccccc1
(b) CCC(C)(C)C1CCC(=O)CC1
(c) O=C(Cl)c1ccc(Oc2ccc(C(=O)Cl)cc2)cc1
(d) CC(=O)OCc1ccccc1
(e) CCCCC(C#N)(Cn1ccnc1)c1ccccc1
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}