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, d, or e without using any additional words.
Options:
a: CCC(C)(C)NC(=NC#N)Nc1cccnc1
b: CCN(C(=O)c1cc(Cl)nc(Cl)c1)C1CC1
c: CCOc1ccc(C2(c3ccc(OCC)cc3)CC2(Cl)Cl)cc1
d: CCCCCCCCOC(=O)C1=C(C)NC(C)=C(C(=O)NC2CC2)C1c1ccccc1[N+](=O)[O-]
e: CC(C)NC(C)C
Answer: b
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}