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 other words.
Options:
[a] O=[N+]([O-])c1ccc(Oc2ccc(Cl)cc2Cl)cc1
[b] C=C(C)c1ccccc1
[c] CC(C)c1cccc(C(C)C)c1N=C=O
[d] CCNP(=S)(OC)Oc1cc(Cl)c(Cl)cc1Cl
[e] CCOP(=O)(CC)Sc1ccccc1
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}