Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, d, or e without using any additional words.
Options:
[a] CCN(CCC#N)c1ccc(N=Nc2nc3ccc(S(C)(=O)=O)cc3s2)c(C)c1
[b] C=CC(Cl)=C(Cl)Cl
[c] CCCSP(=O)(OCC)Oc1cnn(-c2ccc(Cl)cc2)c1
[d] Clc1cccc(C(Cl)(Cl)Cl)n1
[e] CCCCN(CCCC)N=O
Answer: b
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}