Task: Please answer the multiple choice question.
Question: Which molecule has the highest acute oral toxicity (LD50 in rats)?
Constraint: Even if you are not sure, you must pick either a, b, c, or d without using any additional words.
Options:
(a) Cc1ccc(Cc2ccc(C)cc2)cc1
(b) O=C(O)C1CCc2cc(C3CCCCC3)ccc21
(c) Cc1nccnc1C
(d) C=C1CC(=CC)C(=O)OC2CCN3CC=C(COC(=O)C1(C)O)C23
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}