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) O=C(O)C1CCc2cc(C3CCCCC3)c(O)cc21
(b) CC(=O)C1(O)CCC(c2ccccc2)CC1
(c) Cc1ccccc1-n1c(C)nc2ccc(N)cc2c1=O
(d) CC(c1ccc(Cl)cc1)c1ccc(Cl)cc1
(e) C=CCn1c(=O)c2[nH]c(C)nc2n(CCCC)c1=O
Answer: c
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}