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) CCCCC(CC)COC(=O)CCCCCCCC(=O)OCC(CC)CCCC
(b) O=C(OC1CCCCC1)C(Oc1ccc(Cl)cc1)Oc1ccc(Cl)cc1
(c) Cc1ccc(CCOC(=O)c2cccnc2)cc1
(d) CCOC(=O)Nc1ccco1
(e) CCC(C)(C)OC
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}