Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any other words.
Options:
(a) Cc1cc(-c2ccccc2)[nH]n1
(b) CCOc1ccccc1N1CCN(CCCc2ccc3c(c2)CCC(=O)N3)CC1
(c) O=C(O)c1ccccc1C(=O)Nc1ccccc1
(d) CN1CCCCCC1=O
(e) CCCn1c(=O)[nH]c(=O)c2[nH]cnc21
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}