Task: Please answer the multiple choice question.
Question: Which molecule has the highest rat LD50 (oral exposure)?
Constraint: Even if you are uncertain, you must pick either a, b, c, d, or e without using any additional words.
Options:
a) OC1(c2cccc(Cl)c2)c2ccccc2C2=NCCN21
b) CCCC=C1OC(=O)c2ccccc21
c) CCc1ncc(C)nc1C
d) CC(C)Nc1nc(Cl)nc(NC(C)C)n1
e) Cc1ccccc1C(=O)Nc1ccccc1
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}