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) CNC(=O)Oc1ccc(CCC#N)cc1
(b) O=c1n(Cl)c(=O)n(Cl)c(=O)n1Cl
(c) C=Cc1ccccc1Cl
(d) CCOCN(C(=O)CCl)c1c(C)cccc1CC
(e) CC(=O)OCCOc1ccccc1
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}