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] C1CC2OC2CC1C1CO1
[c] CC(C(=O)O)c1ccc(N2Cc3ccccc3C2=O)cc1
[d] OC1(c2ccc(Cl)c(Cl)c2)c2ccccc2C2=NCCN21
Answer: d
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}