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) CCCCOCCCO
b) CCCCOC(=O)CCCCCCCCC(=O)OCCCC
c) C=CCOCC(CC)(CO)CO
d) CC1CC2Oc3ccc(Cl)cc3C(=O)N2O1
e) CC1CC(C)(C)CC(OOC(C)(C)C)(OOC(C)(C)C)C1
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}