Task: Please answer the multiple choice question.
Question: Which molecule has the highest LD50 in rats (oral exposure)?
Constraint: Even if you are not sure, you must pick either a, b, c, or d without using any additional words.
Options:
(a) CCCCOCCOCC(C)O
(b) CCOP(=O)(OCC)SCc1nnc(C)o1
(c) Cc1ccccc1OCC(O)CN(N=CNC(=O)c1ccccc1)C(C)C
(d) CCCCC1C(=O)N(c2ccccc2)N(c2ccccc2)C1=O
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}