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 additional words.
Options:
(a) CCSc1nc(NC(C)C)nc(NC(C)C)n1
(b) CC[N+](C)(C)CCC(C(N)=O)(c1ccccc1)c1ccccc1
(c) Cc1cc(=NC(=O)c2ccccc2O)n(C)n1C
(d) NC(=O)C(c1ccccc1)c1ccccc1
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}