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, or d without using any other words.
Options:
(a) CC(C(=O)O)c1ccc2oc(-c3ccc(Cl)cc3)nc2c1
(b) OCC1CCc2cc(C3CCCCC3)ccc21
(c) C[n+]1cccc(C(=O)[O-])c1
(d) CN(C)C1c2ccccc2NC(=O)c2ccccc21
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}