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 additional words.
Options:
(a) CCC(=O)OCc1ccc(OC)cc1
(b) COP(=S)(OC)SC(C(=O)OC(C)C)c1ccccc1
(c) CC1CC2CN(C)CC(C2O)C1N1CCCC1
(d) CCCCCCCCCCCCCCCCOC(=O)Cc1ccc(N(CCCl)CCCl)cc1
(e) CCOC(=O)c1ccc(N)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}