Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (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) CCC(C)Cn1c(=O)n(C)c(=O)c2[nH]c(C)nc21
(b) O=C(CCCCC(=O)OC1CCCCC1)OC1CCCCC1
(c) CC(Cc1ccccc1)NCCC(c1ccccc1)c1ccccc1
(d) O=[N+]([O-])OC1COC2C(O)COC12
(e) CNC(=O)ON=C1SCCS1
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}