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) COS(=O)(=O)OC
(b) CCOC(=O)C1OC1C
(c) O=[N+]([O-])c1nccn1CC(O)CO
(d) OCC(CO)NC1CC(O)(CO)C(O)C(O)C1O
(e) O=C1CCc2cc(C(=O)CCN3CCC(Cc4ccccc4)CC3)ccc2N1
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}