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] C=CCn1c(=O)n(CC=C)c(=O)n(CC=C)c1=O
[b] COC(=O)c1ccccc1O
[c] ClC1=C(Cl)C2(Cl)C3C(Br)C=CC3C1(Cl)C2(Cl)Cl
[d] CCCCOc1c(Cl)c(Cl)c(Cl)c(Cl)c1Cl
[e] O=C(Nc1cccc(Cl)c1)OCC#CCCl
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}