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 other words.
Options:
[a] CNC(=O)Oc1cccc2c1OC(C)(C)O2
[b] CC(C)=CC(NC(=O)C1=C([O-])c2sc(Cl)cc2S(=O)(=O)N1C)[n+]1ccccc1
[c] C#CCN1C(=O)CN=C(c2ccccc2)c2cc([N+](=O)[O-])ccc21
[d] CC1CCC(C(C)C)C(O)C1
[e] C=CCCCOC(=O)C(CC)N(Cc1ccco1)C(=O)n1ccnc1
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}