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, c, d, or e without using any other words.
Options:
(a) COP(=S)(OC)SC1CCC2C=CCC1S2
(b) CCCCCCOC(=O)CCCCCCCC(=O)OCCCCCC
(c) CC(C)(C)C(O)C(=Cc1ccc(Cl)cc1Cl)n1cncn1
(d) O=C(C=Cc1ccccc1)OCCc1ccccc1
(e) C1=CCC(C2OCC3(CC=CCC3)CO2)CC1
Answer: b
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}