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, or d without using any additional words.
Options:
(a) OCCOCCOCCN1CCN(C(c2ccccc2)c2ccc(Cl)cc2)CC1
(b) CC(C)CCCCCCCCCCOC(=O)c1ccccc1C(=O)OCCCCCCCCCCC(C)C
(c) COP(=O)(OC)OC(=C(Br)Br)c1ccc(Cl)cc1Cl
(d) CCCCNc1ccccc1
Answer: a
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}