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) CC=Cc1ccc(OC(C)=O)c(OC)c1
(b) COc1c(Cl)ccc(Cl)c1C(=O)O
(c) CCOc1ccc(NCCC#N)cc1
(d) O=[N+]([O-])c1ccc(OP(=O)(OCCCl)OCCCl)cc1
(e) CCOC(=O)C(CC)(CC(=O)OCCN(CC)CC)c1ccccc1
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}