Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any additional words.
Options:
(a) CN(C)C(=O)CCNc1ccc(Br)cc1
(b) Cc1ccc(C)c(C)c1
(c) CC(=O)Nc1ccc(O)cc1
(d) CC(=O)N(C)C(=O)Oc1cc(C)c(C)cc1Cl
(e) COCCc1ccccc1
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}