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 additional words.
Options:
(a) CNC(=O)ON=C(CSC)C(C)(C)C
(b) OCCNCCO
(c) Cc1c(Cl)c(Br)cc2[nH]c(C(F)(F)F)nc12
(d) CCOc1ccccc1N1CCN(CCCCc2ccc3c(c2)CCC(=O)N3)CC1
(e) CC(=O)OC1(C)CCC23CC1C(C)(C)C2CCC3C
Answer: a
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}